There is some mild sexual innuendo relating to a female dog's desire for a male dog. She says things like 'Take me, stud muffin', 'I'm getting hotter...in more ways then one', and repeatedly tries to rope him in so they can breed.

A female dog is seen sliding down a pole. We see a male dog drool at the sight of this.

There is a strip club like scene.

Very violent, with much of it taking place in a "fight club" for dogs. One dog having his teeth smashed out was particularly gruesome.

Rex says Hell

A dog says the "d" word.

A sniffer dog is said to have been abandoned after he got "too good" at sniffing, he then blocks one nostril and snorts a man's white shoe lace and then acts dopey.

The fight club scenes were scary with teeth being smashed out of dogs mouths and being forced to fight. Other scary scenes involve drowning in icy water and being stuck in a burning room.

Charlie's betrayal can be shocking