? BCE (Before the Great War)
2002 (Infiltration / Stormbringer)
Stormbringer 4 – Whirl is part of a meeting in Bludgeon‘s base where Jetfire, Optimus Prime, the Technobots and the Wreckers are contemplating Thunderwing’s return to Cybertron. The discussion goes bad, as Prime says Thunderwing has to be stopped at ANY cost.
When the Decepticons arrive as assistance, and Optimus Prime brings in the Centurion Drones, it seems they might have a small chance, but then Thunderwing changes into some sort of Ultra mode. Eventually, Thunderwing runs out of Ultra Energon, and he is taken down.