Abbi decides she's too nice so she tries to be the opposite; Abbi and Ilana attend a high-end party and meet some adventurous DJs.
A Russian nuclear submarine disappears in American waters, putting Elizabeth in a tricky situation; Stevie ends things with her boyfriend.
As Reese & Shaw race to catch up with Finch, he infiltrates a maximum security government facility in a final attempt to destroy Samaritan.