This page contains content that is considered "level 2 canon" and may be contradicted by the TV series.
Steven and the Gems set sail on the Gem Sloop to find and retrieve a gem artifact in a remote location inaccessible by warp pad. They discover that the artifact is guarded by a territorial gem monster, who shipwrecks the Crystal Gems in their first attempt to get the artifact. Luckily, Onion and his dad Yellowtail are out on a fishing trip and happen upon the Gems at just the right time.
- Steven Universe
- Red Eel Monster (debut/antagonist)
- Tentacle Monster (debut)