Piranha (ej svensk text) (Blu-ray)

When two teenagers find an abandoned military compound and skinny dip in a holding pool they are attacked by an unseen force. Sometime later, determined yet absent-minded skiptracer, Maggie McKeown (Heather Menzies), is dispatched to find the missing teenagers near Lost River Lake and hires a surly local drunkard, Paul Grogan (Bradford Dillman), to guide her. They discover the compound and find bizarre jarred specimens of a ravenous and prodigious strain of piranha. When the specimens are accidentally released from the compound they find their way into the river that leads to the summer camp consuming everything in their path.