Hello, I remember watching a TV show about a group of school kids who some how become stranded and are being chased by some men who are dressed up as a duck, maybe a rabbit and santa clause. The kids end up on a farm for help, but the men end up killing the couple living there and knocking over their fish tank and the kids escaped through a cave system, and having to swim through water Any thoughts Please THANKS!

It's a 1986 TV movie called Fortress (http://www.imdb.com/title/tt0091069/) with Rachel Ward.

That is EXACTLY the movie Thank you soooo much I have been trying to figure that out Forever! :)