Having been "banished" to the island for training in Part 1, the Dinobots eventually join the fight. They prove their worth by leading a charge against the Decepticons and helping to stabilize the island's energy.
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 Transformers G1 2x15
Optimus Prime, Megatron, the Dinobots (Grimlock, Slag, Sludge, Snarl, Swoop), and various prehistoric creatures. Plot Summary Having been "banished" to the island for training
"Transformers G1 2x15" refers to Season 2, Episode 15 of the original The Transformers animated series, titled . The Transformers (TV Series 1984–1987) - IMDb Optimus
Megatron uses the island's raw energy to recharge his forces, causing environmental instability.
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
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.