Watch Supergirl s2e3 online stream free.
Description by couchtuner for Supergirl Season 2 Episode 3 : An attack is made on the President as hot-button, alien vs. human rights issues heat up in National City. Supergirl and the DEO are assigned to protect the President and bring in the responsible party. Alex teams up with Detective Maggie Sawyer to investigate the case while Kara searches for a recently escaped Mon-El, who she fears may be the alien behind the assault.
Watch It Here : Supergirl Season 2 Episode 3 Welcome to Earth
