Generate a question about the following movie plot: A black dog (Christopher Benjamin) almost drowns, but at the last second he is rescued at some sort of scientific laboratory. The scenery outside that facility is grim and desolate. Dogs are kept onto cages, and when one of them dies, they are shoved aside with pales. Tyson (Warren Mitchell) is a hand workers who treats animals roughly. He throws Rowf to one side of the cage and some food carelessly on the other. Cage 732, the cage of the almost-drowned dog is left open by the careless feeder. The black dog is very weak, but another dog howls like a wolf and that makes Rowf mad. Snitter (John Hurt) sneaks into Rowlfs's cage. Rowf eats his food and he leaves with Snitter, who wears a kind of green cap.The laboratory is a scary place, even for a human. They have monkeys, rabbits, mice... imprisoned, unable to move. Regardless of what they are trying to research, it looks that Dr. W. Goodner likes torturing animals. A monkey makes noise, scaring the escaping dogs; they throw a glass mouse cage, and the mice immediately run away. They soon find a lock door, but they manage to get into the incinerator, which they consider a death place. Snitter is the first to jump, and Rowf feels that he has not other option than to go behind him. There is only ash and bones there. They rest and sleep there for a while. Snitter dreams of an owner in the city; that person died to push him out of a lorry's way. A female voice accuses Snitter of having killed the person. Snitter wakes up startled and he has trouble waking Rowf up. He can feel that fresh air comes from another opening, so they go through that hole on the wall when the doctor throws a dead dog to the incinerator and is about to turn it on. Suspense because Rowf has got stuck, but he and Snitter escape in the last second. They are free now.They stare at the stars. Snitter stares at the burnt black dead landscape, and wonders how the men destroyed the city and all the masters. He still thinks that there have to be masters somewhere, although Rowf doubts it. Rowf is...
A:
Where are Rowf and Snitter nearly killed before escaping?