Chloe Bennet Chloe Bennet

Marvel's Agents of S.H.I.E.L.D. took a big tumble in its second week.

The ABC series, which posted the biggest drama debut in four years, pulled in 8.4 million viewers and a 3.1 in the adults 18-to-49 demographic Tuesday, dropping 34 percent from last week. S.H.I.E.L.D. placed third in the timeslot behind The Voice (14.2 million, 4.4) and NCIS, which drew 19.3 million and a 3.4, down two-tenths, for Cote de Pablo's final episode.

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