Tomorrow night brings us the fourth episode of Agents of S.H.I.E.L.D. which has had outstanding ratings to this point. The official synopsis for the episode, entitled "Eye-Spy", is below:
"Agent Coulson and the S.H.I.E.L.D. team try to track down a mysterious woman who has single-handedly committed numerous high-stakes heists. But when the woman's identity is revealed, a troubling secret stands to ruin Coulson."
Based on the clip below, we can see this mysterious woman can handle herself and make a big mess for those who get in her way. The clip is 3:32 seconds long and gives us a good look at the red-masked men seen in other promo clips and pictures.