|“||Hanna: What's worth losing everything?
— Lucas and Hanna
The next day, he takes multiple shots of the homecoming king and queen, eventually frustrating the homecoming king with his suggestions, such as having Hanna sit on his lap. When Sean gets angry at Hanna, Lucas snaps a photo of Sean, roiling him further. Later, Lucas and Hanna have fun looking at online videos together, whereas Sean thinks the videos are stupid, proving how much more Lucas and Hanna have in common than her current boyfriend, Sean.
At the Dance-A-Thon, "A" instructs Hanna to repeatedly dance with Lucas and then break his heart, in exchange for her mother's money back. Sean is unforgiving of Hanna's unceremonious treatment of him after several dances with Lucas, leaving her to slow dance with him. At the end of the night, Lucas also feels rejected when Hanna turns down his offer to give her a ride home. Emily, though very drunk, catches onto Hanna's poor treatment of Lucas and comments that Alison would be proud. Hanna feels very remorseful.
Lucas is suspicious of Mona and what she had to do with Caleb leaving town. Mona tries to intimidate Lucas to forget about it, tempting him with the prospect of obtaining Hanna, but Lucas clearly doesn't take the bait, as later we see Lucas and Caleb in a car together! Lucas is driving Caleb back to Rosewood, Pennsylvania (from Arizona?).
When Lucas and Caleb arrive in Rosewood, Lucas protectively warns Caleb not to hurt Hanna again.
Lucas is nervous about his upcoming date with Danielle, so he asks Hanna to double with him and tells her to bring Caleb. Unfortunately it backfires, as Danielle thinks that Hanna is interested in Lucas. To convince Danielle that there is no longer anything between her and Lucas, Hanna recruits Caleb to better pretend to be on a real date and in a romantic relationship with each other. It works, and Danielle reaches for Lucas' hand. Lucas now understands Hanna's motives to be pure. He thanks Hanna later for helping him with Danielle and acting so un-Alison like. Lucas' words play a major role in helping Hanna get over Alison and the effect her bullying had on her self-esteem.
Lucas reluctantly helps Hanna study for a test and plan Caleb's surprise party. It seems he is hiding a big secret from Hanna, even calling a crisis hotline to get it off his chest. Emily and Spencer try to convince Hanna that Lucas is A's helper, the one that tried to kill Emily in the greenhouse, but Hanna refuses to entertain the idea without proof. Lucas and Hanna take the rowboat from Spencer's lake house to the other side of the lake to set up fireworks. Lucas stops rowing half-way across so they can talk. Hanna gets spooked and pushes Lucas out of the boat.
After the incident, Hanna tells the others she is sure Lucas is still alive. The next day she finds out from Lucas' parents that he called them and is staying with a cousin for the time being. Caleb, however, doesn't buy it and wants to search for Lucas. Hanna isn't quite as eager because she is afraid Lucas could have been helping "A," but can't tell Caleb that. That night, Hanna notices the wind blew the door open, and thinks the latch is broken, but really Lucas broke in to the house.
She's Better Now
Hanna is worried about Lucas when Mona whispers something to him but he doesn't say anything to her. The next day Lucas knocks on Hanna's door with the last of the money he owed Caleb. Hanna asks him about his leg and he says that he got in a skateboarding accident. Hanna asks Lucas what's going on between him and Mona but he says nothing, apart from telling her that Mona had been sneaking out of Radley Sanitarium for a long time, and he won't say why.
The Gloves Are On
Hanna runs into Lucas at the brew, apparently Lucas is doing very well for himself. With several different homes one of which in Rosewood. He was unaware of Hanna and Caleb’s break up.
While Hanna is on the phone with Jordan, Lucas runs diagnostics on a tablet. She says that it's a good idea to stay in Rosewood because, if she was in New York, she'd just be thinking about Aria and the others. She adds that they're her friends and says that she'll call him later. Lucas looks up and asks if he'll get an invitation to her wedding, then adds that he was half-expecting to meet Jordan when he came back. Hanna says that Jordan is a little phobic of small towns, causing Lucas to say that he used to think that but big cities changed his mind. Hanna then gives Lucas a gift, in the form of a few ties, thanking him for letting her stay there: she also wrote post-it notes saying which tie goes with what. Lucas talks about how he came back because he wanted to look for property, then adds that maybe he's giving Rosewood a second chance. Hanna agrees saying that they left so fast that they didn't realize what they left behind, and they smile at each other.
Lucas [about Hanna]: Girls like her don't approach guys like me unless they have deep-seated self-esteem issues and a drinking problem... I have the upper body strength of Screech, and I spend my weekends playing Wii, alone. I think my virginity is pretty well safeguarded.
Lucas [telling Hanna she looks pretty in photos]: You do, sort of, in a post-apocalyptic, ragtag-band-of-survivors kind of way.
[Lucas' hand touches Hanna]
Hanna: For what?
Lucas: I didn't mean to invade your personal... Skin.
Hanna: It's okay. The Leprosy cleared up.
Lucas: Pudding palooza! Vanilla, tapioca, butterscotch.
Hanna: Uh, tapioca. I like the little bumps.
Lucas [referencing her cast]: That's starting to look like the Declaration of Independence.
Hanna: You know, Lucas, you don't have to keep skipping school I'm okay.
Lucas: I told them I was doing community service.
Hanna: And they believed you?
Lucas: I have a very believable face. I plan to use it in politics.
Hanna: Well, you're a good friend.
[Lucas and Hanna are in the hospital talking about the night before]
Lucas: Did Lucas actually kiss me when he thought I was asleep?
Hanna: Yeah. Things like that.
Lucas: I thought you might had been awake. And then I thought, if she was awake, and she didn't scream then that was a good sign.
Hanna: Well, I was too surprised to do anything.
Lucas: Really? You were that surprised? Me wanting to kiss you was so outside the realm of probability?
Hanna: No! No, it's not that it's just... You know, I thought that we were friends. Look, I like you Lucas.
Lucas: I feel like you're breaking up with me but we were never really together.
Hanna: Lucas, I am being honest with you. And, besides, I have a boyfriend!
Lucas: And I think you deserve a better boyfriend.
Hanna: Well, that's between me and Sean. Look, I like you way to much to lie to you. And, that's something I used to do all the time.
Lucas: Well, can't you just keep lying for old-times sake?
Hanna [shaking head]: I'm sorry.
[Lucas starts to walk out]
Hanna: No, wait, Lucas you don't have to leave.
Lucas: No, but if I stay then you're going to think that I'm okay with this and I'm not. I'm sorry. But I'm just being honest.
Lucas [to Hanna after she pities him]: Don't. Please. Don't make me like you. It's too hard.
Lucas [offering to take Hanna home]: Look... I know Sean took off and... I was thinking that since you guys were now over...
Hanna: Lucas, that's really sweet of you to offer but... Emily's kind of... She needs me right now and I already told Spencer I'd go with her so...
Hanna: I miss you.
Lucas: I miss you, too.
Caleb [when Lucas brings him back to Rosewood]: Why are you doing this?
Lucas: Because Hanna deserves to be happy.
Lucas [when Hanna asks him to be her alibi]: Hey. You need me. I'm here for you.
Lucas: So, do I get an invitation to the wedding?
Hanna: Of course, you do.
Hanna: Oh! Um, I picked up a few ties that I think could go with the shirts I saw in your closet.
Lucas: You did not have to do that.
Hanna: Well, it's just a little thank you for letting me stay here. Oh, and I put post-its on what goes with what.
Lucas: Perfect! Granimals for grown-ups.
Hanna: Hey, what-what is this?
Lucas: Oh, it's the empty factory I'm buying near the lake. And this, is what it's going to look like when it's finished.
Hanna: Wow, that's really nice. What are you gonna do with it?
Lucas: Anything I want to. What would you do with it?
Hanna: Um... Indoor miniature golf?
Lucas: No, seriously, what would you do? If somebody said that you could try anything so create your own business. What would you do?
Hanna: Don't kid like that, Lucas.
Lucas: Who's kidding?
Hanna: Well, I would... Set myself up with some new designers, start my own brand, you know get out of the city away from all the distractions.
Lucas: Deal. Research and development. It can mean whatever we say that it means. Looks, this will be a good way for you too keep one foot in Rosewood. Figure out what you left behind.
Hanna: I think you think I'm somebody I'm not. Everyone thinks I'm somebody I'm not. Somebody smarter, braver, sharper. But I'm not.
Lucas: Yes, you are. That's the point.
Hanna: Lucas? I believe you. That you weren't part of what happened to us. But why is the factory for sale? I mean, was our business partnership ever real?
Lucas: I think you're so talented, Hanna. I just... I had trouble getting other people to take a chance on you.
Hanna: Well, what about the investors?
Lucas: You're looking at him. I was too embarrassed to tell you that I couldn't do it anymore.
Hanna: So, my friends made your life miserable in High School, they almost broke your collar bone tonight, and now you're telling me that I lost all your money?
Lucas: I'll make it back again. Besides, it was worth it.
Hanna: How was it worth it? What's worth losing everything?
Hanna: Thank you. I never doubted that you were--
Lucas: I know. I know.
- Hanna originally only knew Lucas through his interactions with Alison, when Alison would torment him and bully him. During these moments, Hanna just stood by and watched, something that Lucas resented.
- It wasn't until years later, that he told Hanna that he would write angry emails to Charles about her.
- Lucas had a crush on Hanna throughout High School, but never had the courage to tell her.
- When the Liars' parents forced them to spend time apart, Lucas let Hanna help him and the yearbook committee after school so she wouldn't be alone.
- He helped her sell some of her extra fashion items online so that she could make some extra money.
- He came to visit her in the hospital after she was run over by A. The first time he visited he was sent away by Ashley as Hanna was still unconscious, the second he visited her in the middle of night and gave her a kiss on the forehead while she was sleeping, and the third was the next day when she was awake and alert.
- She asked him to be her alibi for the night of Charlotte's murder, which he originally agreed to. However, he was caught in the lie and told the truth but assured the police that Hanna wasn't involved.
- He let her stay in his loft while she was living in Rosewood. As a thank you, she bought him ties to go with the shirts in his closet, and put post-it notes on them so he knew what ties went with what.
- He offered to help her start her own business, and all-but gave her a million dollar line of credit.
- In the books, Lucas and Hanna were close friends.