'Revenge' Sneak Peek: Emily's big 'Sacrifice'

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The second season of Revenge has been building towards The Amanda sinking and claiming at least one life -- and when the sudsy ABC series returns on February 10, the doomed voyage commences.
This morning, I received a Shamu-cam straight from "Nolan Ross" and it contained a very exciting video file labeled "Confidential: For Your Eyes Only." But I've decided to risk Emily's wrath by sharing the sneak peek with you right now!
Accompanying the flashdrive was a note on NOLCORP stationary. It read:
Ems - Or should I start referring to you as The Thorne Identity? (ed note: YES!) Watch this. It's the whale cam video file that goes KA-BOOM! Literally. It self destructs after you watch it. Be extremely careful when activating, and whatever you do, DO NOT let it fall into the wrong hands. Yours in Revenge, N
I can trust you, right?
Revenge airs Sundays at 9 p.m. on ABC.