S2 E15 Secret of the Deep

Robbie, Mr. Stevenson and Allen measure the water at a marsh. At home, Josh has to do dishes, so he has Allen use Xelan powers to clean the dishes. Josh tells Allen about the legend of the bog beast and shows him a TV report which Robbie doesn’t believe. Mr. Stevenson gets a call that he must give a report on the marsh, so Robbie decides to use the extra time to get public support.

Robbie and Mr. Stevenson go over their plans to save the marsh. Allen goes to the marsh alone and looks for the bog beast, but he finds its baby instead (which he doesn’t know), who he bonds with. Robbie makes some phone calls to townspeople to spread the word, which gets 523 supporters. Allen brings the bog beast baby into the attic, which freaks out Josh.

Josh and Robbie realize the bog mother is looking for its baby, and they freak out. They tell Allen that the baby needs to go back to the marsh. Robbie convinces him to do it. In the living room, Robbie and Josh make their plans while Allen is in the attic. In the attic, the alien makes noise when it hears its mother and Allen realizes he has to bring it back.

Mr. Stevenson says the waterways are being shut down and a dam is being built in its place, which complicates the main 3’s plans to bring the baby back to its mother.
Robbie tries to delay her dad but it doesn’t work. Allen tries to get the alien to leave, but it doesn’t want to leave. Mr. Stevenson and his team start putting up the waterway blockage.

Allen goes Xelan to lead the bog baby out of the marsh and into the ocean to reunite with its mother. In the attic, Allen tells his story about the alien. Robbie tells a story about Allen and what he means to her. Allen brings “souvenirs” from the marsh, which the 2 siblings don’t like.