Following an accident with the TARDIS, the Doctor finds himself in a strange universe with a new body that he didn't gain from regeneration. Meanwhile, a pegasus named Derpy is unaware that her life is about to change forever.
Trying to spice up Celestia's love life, Luna signs her up on a dating website. Now Celestia has to go on a series of dates with other immortals. This should end nicely.
In an AU where Pinkie barely misses the Rainboom, neither she nor Cheese Sandwich are party ponies. However, Cheese ends up working at the Pie family rock farm.