Wikipedia
"T.R.A.C.K.S." is the thirteenth episode of the first season of the American television series Agents of S.H.I.E.L.D., based on the Marvel Comics organization S.H.I.E.L.D. (Strategic Homeland Intervention, Enforcement and Logistics Division), revolving around the character of Phil Coulson and his team of S.H.I.E.L.D. agents as they hunt for rogue businessman Ian Quinn. It is set in the Marvel Cinematic Universe (MCU), sharing continuity with the films of the franchise. The episode was written by Lauren LeFranc and Rafe Judkins, and directed by Paul Edwards.
Clark Gregg reprises his role as Coulson from the film series, and is joined by series regulars Ming-Na Wen, Brett Dalton, Chloe Bennet, Iain De Caestecker, and Elizabeth Henstridge. David Conrad returns to portray Quinn, while J. August Richards' recurring guest character Mike Peterson is revealed to be an adaptation and incarnation of Deathlok.
"T.R.A.C.K.S." originally aired on ABC on February 4, 2014, and according to Nielsen Media Research, was watched by 6.62 million viewers.