"Immortal Kombat"[1] is the nineteenth and final episode of the fifth season of Supergirl, and the one-hundred-sixth episode overall. It aired on May 17, 2020[1].
Supergirl realizes that in order to stop Lex and Leviathan she must work with the one person she never thought she’d trust again – Lena. Nia keeps dreaming about Brainy but struggles with what the dreams are trying to tell her. Meanwhile, Brainy realizes there is only one way to stop Lex.[src]
