Beast Wars: Transformers (1996)

Season 3: Episode 1

Realizing that without the Maximals she would never have existed, Blackarachnia actives the Ark's defenses and forces Megatron out of the ship. The Maximals start initial repairs and the time storm subsides a bit, but Optimus Prime's life still hangs in the balance - it could swing either way. Megatron rallies his troops to make sure it swings in his favor.