IGN: Marvel's Agents of S.H.I.E.L.D. is set to return for its second season this September on ABC, with Agent Carter scheduled to come in at the midseason break to fill the gap between the first and second half of S.H.I.E.L.D.'s sophomore season.
Though ABC - and parent company Disney - are standing behind it, it's no secret that S.H.I.E.L.D. struggled to find its footing both creatively and in terms of building an audience.