Adam, Mira and Kai deal with a difficult loss, but their search for answers continues. At a scientist's chateau, they tangle with some old rivals.

The friends land on an island overrun with mutant spider-people. Adam needs help, and their time is quickly running out.

In a strange world filled with shifting shapes, the friends face a puzzling villain, then test their luck on a high-stakes game show.

The kids meet the Four Horsemen of the Apocalypse. While Mira tries to help Death's sick steed, Kai puts his mechanical skills to work.

Separated from Kai and the others, Mira and Adam must solve an old man's riddle. Adam thinks he's spotted a clue about where they are.

On the hunt for Weirdy, the friends take a ghost train to a jazz club. But Adam and Reeve's arguing threatens their mission.

The tension between Reeve and Adam reaches a tipping point, sending them plunging into the ocean — where a hungry sea monster awaits.

Vanessa's confession upsets her friends. Determined to make it up to them, she sneaks off on her own to find the other team.

Disoriented teens Adam, Mira and Kai are strangers who wake up in a room with no doors or windows. How did they get there? And how will they escape?

On a mission to find the Ishibo, Adam battles a fearsome demon monk. Kai's cry for help summons That Weird Guy, who delivers a warning.

The friends wander into a spooky ghost town, but they soon realize they're not alone. Can they trust their new acquaintances?

After battling an ice monster, Adam, Kai and Mira weigh whether to help the other kids, then find themselves stranded at sea.

Adam and Kai land in a new version of the Hollow and search for Mira in a creepy castle, where a gnome's riddle gives them a clue.

After battling the sea monster with Brynhilda, the friends arrive in a fairy-tale land, where three pixies lead them to Weirdy.

Captured by Minotaurs and imprisoned in a labyrinth, the teens face a grisly fate: becoming dinner for a snot-spewing monster.

Adam, Mira and Kai spy a lighthouse and send out a distress signal -- only to stumble into a bizarre new world inhabited by a mysterious being.

The friends team up to face their biggest fears. But they still need answers — and Mira decides to take matters into her own hands.

It's a race to the finish as the friends try to outrun Team B. And when the final boss strikes, they'll have to work together to win.

Adam, Mira and Kai dodge old enemies as they race to find the tree and discover that a powerful foe guards their next destination.

After discovering the truth behind the Hollow, friends Adam, Mira and Kai awaken in their real-life world. But something's not right.