GTA V: Strangers and Freaks: Risk Assessment

A dog that Franklin can understand?

About halfway through the game Franklin will come across a golden retiever (dog) that when barks, he can actually understand. The dog will lead him to a him stuck in a tree tangled with his parachute. He will take you up in a helicopter where you will jump ON to the top of Mount Chiliad. After that, you get on some bikes and race down the West side into the forest.

At the end you get Dom the thrill seeker as a contact.