||Ten (10) fans will win Supergirl: The Complete Third Season! Own Supergirl: The Complete Third Season on Digital now. Own the Blu-ray(TM) and DVD September 18 includes exciting featurettes, DC crossover, deleted scenes and much more! Ridding National City of Queen Rhea and her Daxamite army was a major win for Supergirl, but one that came at a significant cost, as Kara was forced to sacrifice her budding relationship with Mon-El. As season three returns with all-new supercharged adventures this fall, Kara and team will come up against a new threat in the form of DC Worldkiller, Reign. Follow on Facebook and Twitter #Supergirl SUPERGIRL TM & © DC Comics. © 2017 WBEI Enter now!