Contains spoilers for this episode and earlier episodes.
Loras confesses before the Faith as Cersei stays away from the Great Sept. Qyburn's children kill Pycelle and wound Lancel, who discovers wildfire beneath the building. Margaery recognises the danger but cannot persuade the High Sparrow to let everyone leave. The explosion kills them, Loras, Mace, Kevan and the assembled congregation. The Mountain keeps Tommen in the Red Keep; after learning that Margaery is dead, Tommen jumps from his window. Cersei has Unella delivered to the Mountain and later takes the crown herself. At the Twins, Arya serves Walder Frey a pie containing his sons, reveals her identity and cuts his throat.
Davos confronts Melisandre over Shireen's burning, and Jon banishes her after she admits her part. Northern lords rally behind Jon and name him King in the North following Lyanna Mormont's rebuke. Sansa rejects Littlefinger's vision of ruling beside him. Bran returns to the Tower of Joy and sees Lyanna dying after childbirth, asking Ned to protect her baby. The vision reveals that the child is Jon. Sam reaches the Citadel and gains access to its library. In Dorne, Olenna meets Ellaria and Varys to discuss an alliance against Cersei. Daenerys leaves Daario to govern Meereen, appoints Tyrion her Hand and finally sails for Westeros with her armies, allies and three dragons.