"The Monster's Secret!"
Johnny and Ben figure out who the monster is and where they had met it before as they set out to take it on where Johnny last saw the creature. Meanwhile, the creature saves Sue before she drowns in the cave and brings her back to his ship. Reed wakes up and escapes from the hospital as he too sets out to find Sue. Ben, Johnny and Reed all meet up at the pond where Johnny lost the creature as they go in and take on the monster, but it is too much for them when Reed figures it all out. The creature had returned because his mate was ill and needed medical attention, that's why he took Sue.