Cinched and Secured featured the first appearance of Rachel Adams as UltraGirl in “UltraGirl Meets The Collector” on March 26, 2018. That video is also considered the first chapter of the “Crisis” series.
Cinched and Secured’s UltraGirl filmography can be found at https://www.adventuresofultragirl.com/ultraproducers/cinched-and-secured/