Alvina August

Nyssa Al Ghul returns to warn Thea that some renegade League of Assassins members are planning to attack her. Athena is intent on finding a mysterious box that Malcolm left behind, and Nyssa helps Oliver come to a life-changing realisation.

Alicia Banes (guest star KARA ROYSTER) calls Mary for help after her mother, Tasha (guest star ALVINA AUGUST), goes missing. Sam answers Mary's phone and he and Dean head out to help Alicia and her twin brother, Max (guest star KENDRICK SAMPSON), find their mother who was hunting a powerful witch. Meanwhile, Mary starts to have some doubts about the British Men of Letters. RICHARD SPEIGHT, JR. directed the episode.

Glassman's post-op recovery leaves him struggling to get the rest he needs and confronting his relationship with his daughter. Meanwhile, doctors Melendez, Brown and Park have given a young married couple a choice about their future.