"You know what takes real courage?" Kevin Spacey as President Frank Underwood intones while flashes of his backroom dealings and press briefings dance across the screen in House of Cards' Season 3 trailer. "Holding it all together when the stakes are this high." Ooh, this looks scary!

Which three bodies are going into the ground? Who's that kissing Claire? What's going on with that creepy hacker guy? Leave your theories in the comments.