Need to Catch Up on Castle? Watch Seasons 1-4 in Under Four Minutes! (VIDEO)
An awesome Castle fan put together this Season 1-4 recap, set to the music of Jet's "Rip It Up." Check it out, and get ready for Season 4, Episode 21: "Headhunters," airing this Monday, April 16, 2012 at 10 p.m. ET on ABC!