In this gripping episode, Matthew and Hana uncover a hidden Nano SIM card that may hold the key to the Chinese threat. As MI5 Director General Madeline Delaney faces a power struggle, Hana’s safety is compromised when she becomes the target of a sinister framing scheme. Amidst the chaos, the true extent of Tennant’s ambitions becomes clear, and the consequences for those involved reach new heights.