The game would follow Matt Cañas, a former Navy SEAL who was honourably discharged after being shot in the neck. Matt lives in a town in Colorado with his dog, a husky, named Casey.
The opening scene would show a flashback to 1998, when Matt was 10 years old and living with his parents. His father David Cañas had a husky named Willow (prequel already thought of). One summer night in the early hours of the morning, the family house is set on fire by some thugs. A young Matt is suffocated by the smoke while sleeping and passes out. Willow drags and carries young Matt out of the house to safety, as the roof and upstairs of the house collapses and kills David and his wife Victoria.
Now, a 10 year old Matt stood with Willow in a graveyard, looking toward his mother and fathers grave. Then a transition, showing 25 year old Matt stood with Casey, looking toward his mother, father and Willow's grave.
*3 Years Later*
Matt comes home from town to find his house on fire, with Casey inside. He rushes in and gets Casey out as his house burns in the background. In his mailbox he notices an envelope, inside he finds a used matchstick and a letter reading "Like Father, Like Son". Thus begins a mission of revenge, to find the people responsible for his parents death and the people now trying to kill him.
So far, this is what I've come up with.
The game would be 3rd person with Casey with you in most parts of the game. While Casey is with you, you can give him commands that help you throughout the game, such as sneaking into small gaps and grabbing keys from inside a building so you can unlock the door from the outside (as an example).
Like I've mentioned I have a vivid idea for what would be a prequel, where you play as David Cañas with Willow.