The Sister - Season 1 Episode 4 -

As Nathan confronts Bob, we’re given a final poignant glimpse into what he is fighting for. A peek into the deep intimacy that binds Nathan and Holly: how they both mourn Elise — the sister Holly believes is to be lost and Nathan knows is to be gone — and the comfort their love gives both them and their nearest and dearest. Meanwhile, Jacki comes to a bold decision and determines for Holly’s sake to pursue the truth about what happened that night. And when Bob’s true intentions are revealed, Nathan finally fights back with everything in his arsenal.