Supergirl (2015)

S05E13 It's a Super Life

Mxyzptlk makes a comeback, offering Kara an intriguing deal: what if she could travel back in time to reveal her secret to Lena before Lex had the chance? Would the outcome be different? As Kara reflects on significant events from the series, she faces a tough choice about whether to alter the past in hopes of rekindling her friendship with Lena.