Kevin, who is on a dangerous path of despair, returns to his childhood home in Texas to crash with his widowed twin sister, Amy, and teenaged niece, Reese. It is a strained homecoming - he and his family have grown apart over the years - and Kevin has no real hope that anything will get better. But a series of fantastic events, including a meteorite landing near the house, lead Kevin to meet an unlikely celestial guide, Yvette, who delivers incredible news to Kevin: in every generation there are 36 righteous souls on Earth whose mere existence protects the world. Now Kevin has a mission, whether he wants it or not: “power up” his soul through acts of kindness and selflessness, so that he can eventually find and anoint a new generation of righteous. Yvette will serve as his protector and teacher, a drill sergeant with divine authority, even if she’s the least angel-like person he’s ever met.

When the universe leads Kevin to help Lucille – a mean-spirited diner owner – with some family drama, he quickly finds himself stuck in the middle of a tricky situation with her equally difficult sister. Meanwhile, Reese entertains the thought of Kevin having special powers, and Yvette begins to struggle with the side effects of being on Earth.

Convinced that the universe is leading the way, a very confident Kevin heads to Laos with Tyler in search of the first righteous soul. Meanwhile, Yvette has her doubts about their mission and has a chance encounter with Tyler that changes both of their outlooks. Back in Texas, Amy goes all out decorating for Christmas and decides whether or not she’s truly ready to date again.

Kevin struggles with the idea that his relationship with Kristin might be in jeopardy while helping a stranger honor his deceased uncle’s burial wishes. Yvette makes a drastic decision regarding her future with Kevin by involving a celestial colleague named Cindy and Amy receives an unexpected visit that changes everything.