He's trying to escape his life. She's trying to save the world. Neither of them checked the backseat.

Arthur Vane is done. Done being the responsible one. Done cleaning up his billionaire family's scandals. And definitely done being the "Nice Guy." He has legally changed his name to "Ash," bought a rust-bucket van, and has a plan to drive until he runs out of road. His goal? Radical selfishness. No more helping. No more saving.

Then he discovers Lottie.

Lottie Lemon is currently a fugitive. Okay, technically she's a "freelance animal liberator," but the police in three counties might disagree. After a rescue mission goes sideways (involving a depressed pony and a very expensive fence), she dives into the nearest unlocked vehicle to hide.

Now, Ash is stuck with a stowaway who attracts disaster like he attracts money.

She's chaotic, she talks to the dashboard hula girl, and she has a moral compass that points due North toward "Trouble." Ash should dump her at the nearest bus stop. But when Lottie's "good deeds" start catching up with them-in the form of angry mascots, a viral video, and a very slow-speed chase-Ash realizes his retirement from "fixing things" might have to wait.

Because the only thing more dangerous than Lottie's bad luck is the way she's starting to make Ash feel like a hero again. And that is one responsibility he definitely didn't sign up for.