'Castle' sneak peek: Watch Lanie heat it up in '70s-themed episode | EW.com

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'Castle' sneak peek: Lanie heats it up in '70s-themed episode -- EXCLUSIVE VIDEO

EW had your first look at Castle’s ’70s themed episode last week, but wouldn’t you rather see a clip?

In this exclusive sneak peek, Castle (Nathan Fillion) and Beckett (Stana Katic) have to play along when their sole witness in a case is seemingly trapped in a ’70s frame of mind – and even Lanie (Tamala Jones) gets into the action. 

Her extreme commitment to murder-solving can be seen below. It’s pretty amazing:

Castle‘s blast from the past, titled “That ’70s Show,” airs April 21 at 10 p.m. ET on ABC.