 Audrey Raines is taken in to custody at CTU after Collette Stenger revealed that Audrey had passed information to her. Chloe also uncovers evidence that Audrey may have been working with Walt Cummings. Bierko hijacks a police car, allowing him to move the nerve gas canisters to the Wilshire Gas Company without hindrance during the curfew. Aaron Pierce goes looking for Wayne Palmer after he failed to turn up to their meeting. Meanwhile, Shari Rothenberg (Kate Mara) replaces Edgar placing her under the authority of Miles Papazin, who she claimed sexually harassed her in a former job.