Echoes, Singing Voices

Saya and her group have infiltrated the air force base. Following Julia, David learns Diva appears to be eight weeks pregnant and that the babies will be born soon. Once Julia and Collins are alone, he attempts to kill her, but David intervenes and is shot. At the same time, David manages to stab Collins in the arm with a scalpel, after which Collins runs away. Meanwhile, Amshel captures Kai and takes him to Diva, who wants to make him a chevalier. Saya is able to get Kai away, but when she goes after Diva, Amshel captures her, and Hagi is caught by Nathan. While they fight, several people attending the concert suddenly change into chiroptera and begin killing the other guests, only to be killed themselves by the Corpse Corps. Solomon appears and saves Saya from Amshel before flying off with her, after which Hagi frees himself from Nathan's grasp and leaves to rescue Saya.

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S04E05 - Confused Mind