The Complicated History of Agents of SHIELD's Graviton 

www.cbr.com -BY MATTHEW SONNACK - Marvel's Agents of S.H.I.E.L.D. set up the appearance of Avengers foe Graviton in Season 1, but the character didn't appear for four seasons.
キーワード: the complicated history, agents of shield, graviton, agents of s.h.i.e.l.d.