One of the teasers for Season 4, entitled Dig, was pretty sinister. It had Doug Stamper digging a hole, incredibly reminiscent for the ending to Season 3, only to reveal that he's with Frank, and they're breaking new ground in front of a gaggle of reporters, none of whom make the same connection to the scene viewers do. This means that, despite their actions, the pair are continuing on as normal, and slipping straight back into their old, duplicitous routine. Having Doug back by his side should be a good thing for Frank, in terms of his chances to cling onto power, so just what dirty tricks are the duo going to get up to this year, and who'll be on the receiving end of their plotting? If Rachel's death does come back to haunt Doug, would Frank stand by his loyalist subject, and hang him out to dry?