The volcano site was seen in One Shall Fall where Megatron uncovers the source of dark energon coming from inside the volcano. He planned to harvest it until Optimus Prime came to stop him. They fought near the volcano site. Eventually, Megatron got the upper hand and was close to killing Optimus when Bulkhead, who came through a ground bridge, attacked Megatron. Arcee and Ratchet helped Optimus through the ground bridge, with Bulkhead following behind. Megatron forced the Vehicons to bring fresh supplies of dark energon from the volcano and onto the Nemesis.