Power Rangers Zeo is an American television series and the fourth season of the Power Rangers franchise, based on the Super Sentai series Ch?riki Sentai Ohranger. It is the continuation of Mighty Morphin Power Rangers, which aired in 1996.
Power Rangers Zeo is also the first season of Power Rangers to follow the Sentai practice of annual Ranger suit changes and also the last series to use "it's Morphin' Time" until the Neo-Saban era of Power Rangers returns with it as a pre-start command.