Taken place after episode Decepticon Island, both Springload and Kickback sneak in to the ship and free Steeljaw (it because Steeljaw promise Springload about Doradus). Steeljaw freed all of the Decepticons except for Glowstrike, Scorponok, and Saberhorn since they might get revenge for his betrayal. Steeljaw and his Decepticons escaped and took control of the Alchemor to return to Earth, with some Decepticons not pleased about this Thunderhoof rebuild the space bridge but with some upgrades from Simacore, it now capable of going to alternate Earths The Bee Team arrive to stop them but Grimlock who attack first, ask questions later damage the ground bridge which sent the Decepticons and Grimlock to an alternative Earth. Grimlock woke up into the an Earth where he look different and tried to stay in character. He have stay in hiding until he befriend a human boy (who actually half human) to help him find out where he is, the boy is Steve Universe. It up to Grimlock with help of his friends, The Crystal Gems to fight Steeljaw and his army before he might claim this as the Decepticons new home.