Last updated on Monday 20 January 2014 at 22:15 UK

Watch 24 Series 4 Episode 21 Online Free

24 Series 4 Episode 21PLAY

Chinese consulate security head Cheng Zhi realizes Jack and the CTU conducted the raid that resulted in the Consulís death; Palmer and Buchanan do all they can to stymie Chengís inquiry; Jack learns where Marwan is and rushes to capture him; and Marwan prepares to launch the stolen warhead.

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