In Watchers, a genetically engineered creature escapes from a top-secret lab and goes on a killing spree in a small town. As a single mother and her young son try to survive, they form a psychic link with a stray golden retriever who becomes their protector.

In Watchers II, a genetic experiment goes wrong, resulting in the creation of a monster dog. The dog escapes and starts killing people, leading to a terrifying rampage. As the body count rises, a group of people must find a way to stop the genetically enhanced creature before it's too late.

Watchers 3 is a horror and sci-fi movie that follows the story of genetic alteration and the creation of mutant monsters. The plot revolves around a golden retriever with infrared vision that becomes genetically altered and gains extraordinary abilities. As a result, a deadly game of cat and mouse ensues as a group of scientists and a brutal mercenary race against time to capture the dog before it becomes a monster. The movie is based on the novel Watchers by Dean Koontz.

In Watchers Reborn, a detective teams up with a mutant dog to investigate a series of murders and explosions that are connected to genetic engineering. As they delve deeper into the case, they uncover a dark secret that puts their lives in danger.