Twenty-four-year-old Kara Zor-El, who was taken in by the Danvers family when she was 13 after being sent away from Krypton, must learn to embrace her powers after previously hiding them. The Danvers teach her to be careful with her powers, until she has to reveal them during an unexpected disaster, setting her on her journey of heroism.

When a risk-averse, straight-arrowed, female procurement manager at an Amazon-like distribution center falls in love with a free-spirited man who lives life to the fullest because he believes the apocalypse is imminent, they embark on a quest together to fulfill their individual bucket lists, with comedic and poignant results.