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, Kara and team will come up against a new threat in the form of DC world killer, Reign.

Title from container. Based on the characters published by DC Comics created by Jerry Siegel and Joe Shuster.

Disc 1.Girl of steel -- Triggers -- Far from the tree -- The faithful -- Damage. Disc 2. Midvale -- Wake up -- Crisis on Earth-X, part 1 -- Reign -- Special features. Disc 3. Legion of Super Heroes -- Fort Rozz -- For good -- Both sides now -- Schott through the heart -- Special feature. Disc 4. In search of lost time -- Of two minds -- Trinity -- Shelter from the storm -- The fanatical -- Special feature. Disc 5. Dark side of the moon -- Not Kansas -- Make it Reign -- Battles lost and won -- Special feature.