It has been 2 years since the humans have opened a portal to another world, now, Equestria and Earth to counteract terrorism and contraband, they formed the Bureau of Interdimensional Security Affairs Agency, you are part of this new agency.

Matt Jayson Darnell is a retired organized robber, he tries to go on a normal life in Manehatten, but looks like his past comes back to him. (Heavily based on GTA V, but not a crossover)