Kara travels to Superman’s Fortress of Solitude in hopes of learning how to defeat Indigo, a dangerous being who can transport via the Internet and who has a connection to Kara’s past. Also, James’s relationship with Lucy reaches a crossroads.

Briana Venskus, Chris Vance, Italia Ricci, Jay Jackson, Jenna Dewan, Laura Vandervoort, Malina Weissman, Patrick O’Connell