Dragon Ball Z - Unwelcome Discovery

Seizoen: 4 - Aflevering: 32 / 139 - Eerst uitgezonden: 03 oktober 2000 - Episode ID: 80455

The Z-Fighters head to Master Roshi's island to keep Goku safe for time being as Trunks tries to figure out how the timeline became so different. Bulma calls discovering another time capsule, but it looks pretty old. How long has it been out there, and more importantly, who was using it?