While television ratings for Marvel's Agents of SH.I.E.L.D. have pretty much evened out, ABC is looking to create a spike in viewership on March 11 when Jaimie Alexander guest stars as Lady Sif.

Sif is one the first characters from the Marvel cinematic universe to cross over to the television series (there was Stan Lee's blink-or-you-missed-it cameo a few weeks ago and Samuel L. Jackson's appearances as NIck Fury). We'll leave out the spoiler-y plot details but tune in to watch Sif fight a supervillain sorceress.

Until then, check out a new batch of promotional stills from the episode.

Are you still watching AoS? Will you tune in to watch Alexander throw down on the small screen?

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