"Peck's Darling Clementine" is an episode from the Disney Junior series Sheriff Callie's Wild West, which aired on January 30, 2014.
Plot
Tired of Clementine's tardiness and slowness, Peck decides to trade in Clementine for a fast horse named Lickety Split as his new ride. But Peck gets more than he bargains for, because Lickety Split can be very tricky to stop.