 Buchanan becomes visibly angry when he discovers that a raid had occurred on the Chinese consulate without his knowledge.When Cheng Zhi comes to CTU for answers, Buchanan aids in the cover up until Howard Bern can escape from CTU.Buchanan is informed by Michelle Dessler that a terrorist named Mandy had been calling her He advises her to act as if she is going to proceed with the plan, in order to capture Mandy, however Mandy stages her own death, supposedly killing Tony Almeida as well, which leaves Michelle devastated.