Lewis Teague’s Alligator (1980) is one of the great American creature features of the post-Jaws era — written by John Sayles with a perfect mix of satire and suspense. A baby alligator flushed into Chicago’s sewers mutates from lab waste and grows into a gigantic predator, rising to terrorize the city. Smart, funny, and genuinely tense, it remains a cult classic of urban monster horror.

101 Films presents Alligator on 4K-UHD in the UK for the first time. A B-movie masterpiece, Alligator remains a standout picture from the post 70s creature feature boom with surprising depth and an overtly critical take on the inaction on environmental issues of the time that is still relevant today.

From director Lewis Teague (Cujo) and screenwriter John Sayles (The Howling) comes an unstoppable thriller with bite. A family returning from Florida decides their pet baby alligator is too much to handle and flushes him down the toilet. Meanwhile, Slade Laboratories is conducting secret experiments with animals and disposing of them in the sewer. The alligator, fending for itself, begins to feed on the dead animals, and grows. Now, twelve years later, after several mysterious murders, David Madison (Robert Forster, Jackie Brown) is on the case to find out who... or what... is killing people.

Från IMDB:
A pet baby alligator is flushed down a toilet and survives in the city sewers. Twelve years later, it grows to an enormous size thanks to a diet of discarded laboratory dogs injected with growth hormones. Now, humans have entered the menu.