When their aspiring scientist friend Barry's invention goes awry, best friends Shelby and Cyd gain the power to leap forward and backward in time whenever they want – and sometimes when they don't. Now, they experience the twists and turns of friendship and must decide between fixing mistakes in the past or catching a glimpse of the future. While Barry and his assistant, Naldo, try to figure out how to replicate time travel for themselves, Cyd and Shelby use their newfound power to navigate high school life and Shelby's mischievous twin brothers, Bret and Chet.

Starting over isn’t easy, especially for small-town guy John Nolan who, after a life-altering incident, is pursuing his dream of being an LAPD officer. As the force’s oldest rookie, he’s met with skepticism from some higher-ups who see him as just a walking midlife crisis.

K.C. Cooper, a high school math whiz and karate black-belt, learns that her parents are spies when they recruit her to join them in the secret government agency, The Organization. While she now has the latest spy gadgets at her disposal, K.C. has a lot to learn about being a spy, including keeping her new gig a secret from her best friend Marisa. Together, K.C. and her parents, Craig and Kira, and her younger siblings, Ernie and Judy (a humanoid robot), try to balance everyday family life while on undercover missions, near and far, to save the world.