Transformers: Robots in Disguise - Season 4 (2017)

The new Autobot Blurr joins up, and Sideswipe tries to prove himself as good as him.

The Bee Team discovers a mysterious artifact that has a strange effect on Cybertronian minds, turning the bots against one another.

Bee tries to prove he is as cool as Sideswipe and Blurr in a fight against two Stunticons who stole a trailer full of Cybertronian weapons.

A combining accident causes Sideswipe to split into two individuals.

Strongarm flexes her detective muscles to solve a baffling series of Decepticon thefts.

Drift's former mentor Shadowraker comes to Earth to recover something Drift has taken from him- Slipstream and Jetstorm.

A combining accident causes the Autobots to swap personalities, on the verge of a battle with the Stunticons.

Stongarm must protect her old training partner from Decepticons. But can she be trusted?

An ancient Cybertronian signal sends Bumblebee and Fixit to a remote English island, where they encounter a dragon Decepticon.

Grimlock achieves the ability of superspeed.

A runaway train's fusion engine is up for grabs and the Stunticons are in pursuit, so the Bee Team must do all it can to prevent them from getting the cargo.

Bee's new leadership style is put to the test when Motormaster and the Stunticons go after a Meteorite Deflector Dish.

The Autobots go to the moon to recover a dangerous weapon.

Steeljaw and his pack return and launch an attack on the Scrapyard.

The tight confines of the caverns has everyone on edge, so Bee goes on a scouting mission, only to be captured by Steeljaw's Decepticons who also manage to capture the squabbling Sideswipe and Stongarm. Fixit, along for the mission, does his best to keep Steeljaw and the 'Cons at bay in the depths of the subway chamber junction while all the captured Autobots work to free themselves and defeat the 'Cons.

The Bee Team struggles to recover a canister with radioactive fuel rods from Steeljaw and his pack, while Grimlock struggles to learn the difference between work and play.

Strongarm struggles with the correct way to treat a prisoner while also helping the Bee Team keep Steeljaw and his pack from wreaking havoc at a nuclear power plant.

Soundwave finally escapes the Shadowzone to set up a Beacon Generator intended to summon Megatron. In the battle, Sideswipe learns to consider the consequences of his actions.

When Underbite eats part of the Autobots' GroundBridge, can gains the ability to teleport and the Bee Team has to chase him through various locations.

When the Energon seeker Wingcode infects the Autobots with a virus, Grimlock is the only one left standing.

Strongarm's old mentor Detective Dropforge arrives from Cybertron with orders to arrest the Bee Team.

Optimus returns with old friends and dire warnings of a Cybertronian invasion of Earth, and the Autobots must defend their old home and their new one. Steljaw offers assistance, but can he be trusted?

The final battle commences, with the Bee Team struggling to free Cybertron and Optimus's All-Stars holding back a Cybertronian invasion of Earth.