ABC's highly-anticipated Marvel's Agents of S.H.I.E.L.D. debuted last night with its "Pilot" episode, setting the stage for what surely will be an explosive season. The network has released a new trailer that highlights some of the new cases this S.H.I.E.L.D. team, lead by Agent Coulson (Clark Gregg), will be taking on in Season 1. Take a look at the latest footage before the show returns next week with "0-8-4" on Tuesday, October 1 at 8 PM ET on ABC.