Transformers: Robots In Disguise - Season 1 - Eps 25: Battlegrounds (1)
In the wake of a coming threat to Earth by Steeljaw's gang, the Primes decide to send Optimus there despite his training not yet complete. As Optimus prepares to return to Earth to face the mysterious "Evil" he's prophesied, the Bee Team must prevent Steeljaw's Pack from teleporting that same threat onto Earth.
About Transformers: Robots In Disguise

Title: Transformers: Robots In Disguise
First Air Date: 2015-03-14
Last Air Date: 2017-11-11
Status: Canceled
Rating: 7.069/10 (from 51 votes)
Language: EN
Seasons: 4
Total Episodes: 71
Network: Cartoon Network
Genres: Kids, Animation
Production Companies: Hasbro Studios, Darby Pop Productions
Synopsis
Years after the events of Predacons Rising, Bumblebee is summoned back to Earth to battle several of Cybertron's most wanted Decepticons that escaped from a crashed prison ship and assembles a team of young Autobots that includes Sideswipe (a rebel "bad boy bot"), Strongarm (an Elite Guard cadet), Grimlock (a bombastic Dinobot), and Fixit (a hyperactive Mini-Con with faulty wiring).
Cast

Will Friedle
Bumblebee (voice)

Khary Payton
Grimlock (voice)

Darren Criss
Sideswipe (voice)

Mitchell Whitfield
Fixit (voice)

Constance Zimmer
Strongarm / Filch / Matronly Docent (voice)