The core of this episode revolves around eavesdropping, hiding, and secret conversations.
Miss Audrey ( Lena Hall ) agrees to cross over to Big Alice under the guise of an intimate dinner invitation from Mr. Wilford (Sean Bean). Her secret objective is to modify the train's electrical relays to allow Snowpiercer to wiretap Wilford's communications. However, Wilford’s historical psychological hold over her complicates her mission. By the end of the night, she chooses to stay aboard Big Alice . snowpiercer s02e05 dd5.1