: The swimmers aren't being eaten; they are transforming into gill monsters .
" Go Fish " is the of Buffy the Vampire Slayer , originally aired on May 5, 1998 . It is widely considered a "breather episode" or "monster-of-the-week" story positioned just before the intense two-part season finale. Plot Summary
After Sunnydale High's star swimmers begin disappearing—leaving only their empty skins behind—Buffy and the Scooby Gang investigate a possible monster attack.
