Season one begins where the “Marvel’s The Avengers” left off. It’s just after the battle of New York, and now that the existence of superheroes and aliens has become public knowledge, the world is trying to come to grips with this new reality. Agent Phil Coulson is back in action and now has his eye on a mysterious group called The Rising Tide. In order to track this unseen, unknown enemy, he has assembled a small, highly select group of Agents from the worldwide law-enforcement organization known as S.H.I.E.L.D.