Meet June Parker. She works for L.A. Rideshare, adores her rent-stabilized apartment in Santa Monica, and struggles with losing a few pesky pounds. But June’s life is about to change. After a dark turn of events involving Weight Watchers, a chili recipe and a car accident in which her passenger, Marissa, dies, June finds herself in possession of a list, “20 Things to Do By My 25th Birthday.” Even though they barely knew each other, June is compelled by both guilt and a desire to set things right to finish the list for Marissa. The tasks before her range from inspiring (Run a 5K), to daring (Go braless), to near-impossible (Change someone’s life), and as June races to achieve each goal before the deadline, she learns more about her own life than she ever bargained for.