Coulson will have a lot to deal with when the show returns, including Bobbie and Mack's plan, Ward and Agent 33's team up and Skye's powers. As if that's not enough, Skye's father, Cal, is out there somewhere seeking vengeance against Coulson for killing Whitehall.
Skye: What is an "O 84" Coulson: You have exactly 10 minutes to decide if you want to know. Skye: There is no way we can get back to the airfield in 10 mins. Coulson: [presses button] The tide is rising.
Hill: Then New York was invaded by aliens, and they were beaten back by among others, a giant green monster, a costumed hero from the 40s, and a god. Ward: I don't think Thor is technically a god Hill: You haven't been near his arms.