Tom, Tubb and Scooby are water skiing behind their friend Moby when they notice what looks like a space capsule about to splash down in the ocean. Manta Menace is waiting for the capsule and its contents: the secret maps of the Mars diamond mines. The boys see the capsule sink and have Moby take them in so they can investigate.
| Name | Type | Role | |
|---|---|---|---|
| Ed Brandt | Writer | ||
| David Scott | Writer |