When Izzy’s Hollywood acting debut crashes and burns, she’s left with a long summer in La La Land and no plan—until she discovers her terminally ill grandmother's bucket list. With Sally growing weaker, Izzy must take the reins. Their wild schemes and secret road trips teach Izzy that the best adventures in life are unscripted. But as the risks grow bigger and time runs out, Izzy must decide how far she’s willing to go to make Sally's dreams come true.