While on a lakeside outing, Sarah spots blood and bite marks in the water and insists an alligator is responsible. Her companion, Tom, dismisses her claims as crazy talk, urging her to stop ruining the trip. A local boat rental man, Jack, arrives and confidently denies any gators live in the lake, further isolating Sarah. After a fake alligator head prank, Sarah confronts Jack about the powerful rifle he keeps on the premises, questioning what he's truly afraid of. Jack ominously turns the weapon towards her, revealing a hidden threat.