Earlier today we were teased with a 6-seconds clip of Agents of SHIELD. Now tonight the world premiere trailer for Agents of SHIELD has debuted. Starting this fall, the Marvel Universe once again returns to television. what started in the Marvel Cinematic Universe continues on in Agents of SHIELD. This also marks the return of fan-favorite, Agent Phil Coulson (Clark Gregg)! So check out the trailer below, the look for new episodes to premiere this fall on ABC. Visit AgentsofShield.com for more info on SHIELD.