Upon discovering that Irina Derevko (Lena Olin) is alive, Sydney, Jack and Nadia set out to find her in order to thwart Elena Derevko's (Sonia Braga, "American Family," "Kiss of the Spider Woman") deadly Rambaldi endgame. Meanwhile, Dixon's condition takes a turn for the worse. Angela Bassett guest stars as Hayden Chase.
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