When their aspiring scientist friend Barry's invention goes awry, best friends Cyd and Shelby gain the power to leap forward and backward in time whenever they want – and even sometimes when they don’t! Now, these BFF’s experience the twists and turns of friendship and must decide between fixing mistakes in the past or catching a glimpse of the future. Cyd and Shelby must learn to master their new powers, deal with Shelby’s mischievous twin brothers Bret and Chet and maneuver through yesterday, today, and tomorrow!