The episode begins with Clara trying to tell The Doctor she has plans with Danny (with whom she has agreed to go on a second date) and cannot leave with him for his fanciful adventures he’s planned; but the TARDIS phone begins to ring as she tries to leave. With very few people knowing The Doctor’s number, including “the woman in the shop” and Clara, The Doctor answers it despite Clara’s protests. We flash to the pair, and two others sitting in a sterile looking room, with memory worms. Incidentally the same looking memory worms we first saw during Clara’s first “full companion” episode, “The Snowmen” with Matt Smith. We see Clara (Jenna Louise Coleman), The Doctor (Peter Capaldi), Psi (Jonathon Bailey) an augmented human, and Saibra (Pippa Bennett-Warner) a mutant human, in the room. While each of the four are looking confused as to what they are doing there and why, a recording of each of them agreeing to have their memories wiped is played, and it has been agreed to by all four prior to being transported to the table. At the table they find out they have been enlisted to rob the highest security bank in the universe, the bank of Karabraxos by the Architect who gives an overview of the security of the bank. The Architect has left a briefcase full of data, and Psi uploads it into his consciousness. As the message finishes playing, bank security finds them in the room and they escape from a side door. We flash to Ms. Delphox (Keeley Hawes), the bank manager, who is alerted to the team’s presence by security confused from touching the memory worms. The woman, Mrs. Delphox, looks like a strange cross of Ms. Foster from “Partner’s in Crime,” Madame Kovarian from the River era, and an off version of our newest mystery woman, Missy. She taps on a glass and awakens “The Teller” to help find the unwanted guests; while the four: Clara, The Doctor, Psi, and Saibra, start running down the hall, The Doctor calls for them to stop, being out of breath, which is ironic as he is usually the one pushing a full on sprint. As The Doctor begins to assess Psi and Saibra, both ask why he is in charge, to which The Doctor responds, “Basically, it’s the eyebrows.” He learns that Psi is an augmented human who has computer powers and a criminal background, and Saibra can replicate anyone who she touches exactly down to breath. When asked why they need to accomplish the task they don’t recall agreeing to, The Doctor declares, I don’t think we have a choice, we’ve already agreed.