June travels to Sanctum, determined to find out why her mother left home. Harry and John set their differences aside for a rescue mission.
As a shellshocked June and Harry try to understand what's happening, their parents realize they've gone missing. Dr. Halvorson runs tests on Elena.
While John and Ryan race to London, a sympathetic stranger offers Harry and June a place to crash -- and a way to make easy money on the club circuit.
Eager to escape her controlling dad, June prepares to skip town with boyfriend Harry. But a harrowing encounter upends their plans.
Nick takes on Azealia Banks, Lil Yachty and JaVale McGee in games of Pick Up and Kill It, So Petty, Got Props and Wildstyle.
The StoryBots climb inside a computer to learn about input, output and processing. Snoop Dogg guest-stars as a tech-savvy operating system.
A piece of broccoli and a rebellious cupcake teach the StoryBots about proper nutrition. Christina Applegate guest-stars as a bakery owner.
The StoryBots help the lead of a subterranean musical deal with the pressures of fame. David Koechner guest-stars as a pirate.
The StoryBots take on an awfully big task: counting every kind of animal there is. Kristen Schaal guest-stars as a biologist.
A talking boombox turns it up to show the StoryBots how ears help us hear. Ali Wong guest-stars as an all-knowing brain.
Twenty-year-old virgin Josh (who appeared as a contestant in season 2) seeks a princess to help pop his cherry. And Matt and Mary seek a third person to join them in bed.
Sean Lock and Kevin Bridges take on Joe Wilkinson and Victoria Coren Mitchell. Adam Kay joins Susie Dent in Dictionary Corner.
To find out where electricity comes from, the StoryBots go straight to the source. Edward Norton guest-stars as an electronics salesman.
The Happy Helpers are hired to get pop star Nina Glitter (Sabrina Carpenter). to her show on time.
The Go Jetters are on Whistler Mountain in Canada, doing some skiing and checking out the amazing cable car. Kyan and Foz are about to have a go at the Go Jet Ski Challenge when Grandmaster Glitch comes along and wants to show them how it's done - but the sneaky Grandmaster cheats by using his jet pack to power him forward. The Grimbots try to help by messing with the controls of the cable car in the control room.
Sixteen boxers move into a training facility to compete in the Contender tournament; two fighters have a verbal altercation outside the ring; the two teams choose fighters to represent them in the first fight of the tournament.
Zach visits a Florida man whose brother was killed when their family home was literally swallowed whole by the Earth as well as a series of sinkholes that are forming a series of caves right below the houses of a quaint suburban neighborhood.