When they are charged with attacking the island from their monster they want to escape from the island by submarine hidden beneath the island, and the island to destroy the bomb disposal.
On the island, they are being attacked by the monster they had to flee the island by boat, hidden beneath the island and the bomb to destroy the island was abandoned.
When the island where they are attacked by the monster, they had to leave the island with the black ships, water, hidden beneath the island and planted a bomb to destroy the island.