Ticks

A group of troubled teenagers are led by social workers on a California wilderness retreat, not knowing that the woods they are camping in have become infested by mutated, blood-sucking ticks.

Ticks is a 1993 horror sci-fi movie directed by Tony Randel, starring Ami Dolenz, Seth Green, Rosalind Allen. It holds an IMDb rating of 5.5/10 from 6,642 votes and runs 1h 25m.