They Came from the Gateway: Part 1 is the thirteenth episode of the second season of the animated series, Martin Mystery. It was originally released on October 26, 2004 and it was also the continuation of the second part of the episode.


When M.O.M. ceases to return from her Jamaican vacation, Billy calls in Martin, Diana & Java to investigate (despite the fact that Martin has been temporarily suspended from the Center). They uncover what M.O.M. was really up to – she was on a secret mission to unlock the Gateway to the Underworld!




  • The Center's Agents


From Cells as Cameos

  • Mothman
  • Giant Ant
  • Icetopis
  • Highly Evolved Bacteria

Gadgets Used


  • X-Rod
  • Alpha-Goggles

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