Sigh, is it September 24 yet? Marvel's 'Agents of S.H.I.E.L.D.' has debuted countless new promos and featurettes re-hashing much of the same pilot footage, occasionally splicing in a bit beyond, but the newest full-length trailer might be the most exciting yet! Prepare to stand on the line between our world, and a much weirder one alongside Marvel's 'Agents of S.H.I.E.L.D.'!