March Madness, The Blacklist: Redemption and more
Cyd and Shelby jump ahead in time to nab test questions for a difficult history exam. Meanwhile, Barry and Naldo try to make Barry's invention replicate time travel.
Milo and Melissa share their most embarrassing stories, but Zack refuses; the gang participates in a school event that combines the Academic Decathlon and the Athletic Decathlon.
Cyd tries to plan an event to show thanks for the Marcus family, but it turns into a disaster when Shelby brings in hulu dancers, a rock band and jugglers.
Cyd and Shelby travel back in time to relive one of their favorite memories from middle school, but the moment turns out to be totally different from what they both remembered.
The girls travel back in time to learn why Shelby's new lab partner is such a jerk.
Cyd and Shelby go into the past so Barry can meet his childhood science hero, but when they return Barry and Naldo have since become terrible rock musicians instead of aspiring scientists.
The girls go back in time to the 1970s to experience the disco era and become involved in a turf battle between disco and punk kids.
Cyd and Shelby discover a major clue to the future lab memory and it's tied to Barry's science mentor Janet Smythe, who employs Shelby's dad.
Cyd and Shelby revert back to their 5-year-old selves when they go back to kindergarten to celebrate their friendship anniversary and relive the day they first met.
Shelby and Cyd use time travel to attend two events on the same night, but their plan backfires when they both meet boys they like at each event.
Shelby's adventurous Grandma Rita visits and the girls learn that time travelers set up Shelby's grandparents, so the girls jump to the 1950s to investigate.
Comic adventures of a 14-year-old boy and his puppet, Crash, who comes to life.
Diesel accidentally swallows a time-travel tracker and disappears, so Cyd and Shelby try to find him before he is lost forever.
Two high schoolers become unstuck in time when a science experiment goes wrong.
Download the TV Guide app for iPhone, iPad and Android!