Power Rangers Mystic Force, Vol. 2: Legendary Catastros  (DVD) 

The fight against evil continues as the next generation of Power Rangers jump into the fray for his adventure that finds Nick and the legendary steed Catastros suddenly cast into another dimension. As the remaining Power Rangers work to rescue Nick from the dark time warp and prevent Morticon's escape from the pit, the forces of good and evil clash in a catastrophic battle that will ultimately unveil the true identity of the warrior who possesses the boundless power of the Gatekeeper. ~ Jason Buchanan, Rovi