the team was in two different underwater boats, jonas, Rigas and meiying in one and jiuming Zahng and Lance in another together. Jonas and Rigas hade just found out meiying snuck on when 3 megs started to follow them under water as they went faster and more down...then stoped at one point as the megs went away. That was when they saw further away, was some kind of understation water. They saw warmth from inside so someone must be in there