The untold origin story of Optimus Prime and Megatron, better known as sworn enemies, but once were friends bonded like brothers who changed the fate of Cybertron forever.

A robot — ROZZUM unit 7134, “Roz” for short — is shipwrecked on an uninhabited island and must learn to adapt to the harsh surroundings, gradually building relationships with the animals on the island and becoming the adoptive parent of an orphaned gosling.