Mxyzptlk returns with a proposition for Kara - what if she could go back in time and tell Lena her secret before Lex did, would things turn out different? Looking back over key.....

Starring:

Melissa Benoist, Mehcad Brooks, Chyler Leigh, Jeremy Jordan, David Harewood, Calista Flockhart, Chris Wood, Floriana Lima

Genre:

Action, Sci-Fi