What’s Worth Watching: S.H.I.E.L.D. Welcomes Back an Asgardian Pal

Marvel’s Agents of S.H.I.E.L.D., “Who You Really Are” (Tuesday, March 10, 9/8c, ABC)

S.H.I.E.L.D. has no shortage of kick-ass ladies—Agent May (Ming-Na Wen), Bobbi (Adrianne Palicki), Skye (Chloe Bennet)—but we’ll always take another one, especially if that means the return of Lady Sif (Jaimie Alexander), one of Asgard’s baddest warriors. Unfortunately Sif wasn’t quite bad enough to take down one of her mysterious foes, and as a result she’s back on earth minus her memory—where the aforementioned mystery foe also happens to be, carrying out some mysterious mission. (Lotta mystery, tonight.) On the plus side, all the S.H.I.E.L.D.ies really need to do to help Sif get her memory back is show her some footage from Thor and Thor 2.