Ben Tennyson falls through a wormhole and encounters Rex. The two heroes must unite against a foe that can absorb their powers.
Daryl Sabara
as Rex Salazar (voice)
Yuri Lowenthal
as Ben Tennyson/Upgrade (voice)
Wally Kurth
as Agent Six (voice)
Grey DeLisle
as Dr. Holiday (voice)
John DiMaggio
as Bobo Haha/Rath (voice)
J.K. Simmons
as White Knight (voice)
Michael Emerson
as Alpha Nanite (voice)
Jennifer Hale
as Black Knight (voice)
Freddy RodrÃguez
as Ceaser Salazar (voice)
Dee Bradley Baker
as Humungosaur/Diamondhead/Lodestar/Big Chill/Upchuck (voice)
David Kaye
as Shocksquatch (voice)
