Katie is the Yellow Time Force Power Ranger. When Alex the Red Ranger was dying, he told the others the location of the other four Chrono Morphers. Heading into 2001 after Ransik, the Yellow Chrono Morpher would not work until the Red one was activated. But after Jen got Wes Collins to activate the Red Morpher, Katie Morphed into action. The Yellow Time Force Ranger can summon her Chrono Saber or V4, as well as pilot Time Flyer 4.