The Season 3 Finale of SUPERGIRL is here and the questions are already swirling on what it will all mean for season 4! <br /><br />Supergirl (Melissa Benoist) and team take on Serena in an epic battle for Earth.<br /><br />Director: Jesse Warn<br /><br />Writers: Jerry Siegel (based on characters created by), Joe Shuster <br />(based on characters created by) <br /><br />Stars: Melissa Benoist, Mehcad Brooks, Chyler Leigh
