In the 18th-season episode " Family Time " (2021), the Smith family faces danger at a buffet run by a deranged scientist, while Roger tries to escape life by living as a flower. This American Dad! episode follows Stan's attempt to use a stolen coupon, resulting in a kidnapping, a surreal plot involving flower pirates, and a final, ironic twist. You can find detailed information and streaming options on IMDb and the American Dad! Wikia .