‘Agents Of S.H.I.E.L.D.’ Trailer

This is the week that the networks are trotting out their upcoming fall shows, and one that's getting a lot of buzz is ABC's "Marvel's Agents Of S.H.I.E.L.D.". Clark Gregg will reprise his role as Agent Phil Coulson on the series, developed by "Avengers" writer and director Joss Whedon. Here's the official full-length trailer.