"Transformers G1 2x15" refers to Season 2, Episode 15 of the original The Transformers animated series, titled .
The Decepticons are driven off, and the Autobots decide to leave the island as a sanctuary for the Dinobots and the prehistoric life there. Legacy & Production Transformers G1 2x15
This episode is the conclusion of a two-part special where the Autobots discover a prehistoric "lost world" and attempt to train the Dinobots to fight more effectively. Title: Dinobot Island, Part 2 Original Air Date: September 26, 1985 "Transformers G1 2x15" refers to Season 2, Episode
Following the events of Part 1, the Decepticons have invaded Dinobot Island to harvest its unique energy sources, leading to unstable "time warps" that bring prehistoric threats into the modern world. Title: Dinobot Island, Part 2 Original Air Date:
Optimus Prime and the Autobots arrive to stop the Decepticons and prevent the time warps from destroying the Earth.
The episode is part of the larger Generation 1 (G1) continuity, which includes the 1986 film and subsequent seasons. The Transformers (TV Series 1984–1987) - IMDb
Produced by Toei Animation and Sunbow Entertainment.