Kara deals with the loss of Mon-El by focusing all her energy on being Supergirl and the mysterious new threat against National City. Alex confesses a secret to Maggie about their impending nuptials. A citizen of National City has a mysterious connec... (more)tion to Kara, and Lena makes a bold move.

Adrian Pasdar, Calista Flockhart, David St. Louis, Emma Tremblay, Erica Durance, Floriana Lima