Molly is stuck on a wild ride of her own making. She's been transported onto an anxiety-fueled streetcar that's filled will all her doubts, fears, and worries. Every time she has a test at school, or her daily routine gets messed up, she finds herself trapped on an out-of-control trolley with no exit. As her heart pounds and her knees buckle, she pleads with the operator to make it stop. But he can't. The only one who can get this trolley under control is Molly. As her stress and anxiety accelerate, can she figure out how to pull the brakes before her ride comes to a disastrous end?