Spike visits the comic shop in Canterlot and learns that his favorite series, 'Power Ponies' has been discontinued. He becomes grief-stricken and goes through 5 stages until he accepts that sometimes things don't always end the way you want them to end.
The original cover art comes from the 2014 MLP Annual by Andy Price. I did a quick Paint-shop to change the title to 'Power Pony' and added the large heading for 'CANCELLED' AND CROSSED OUT CIRCLE. Art credit to artist Andy Price.