What are the holidays without a ring of spies? Blindspot will turn up the heat for the midseason finale. 'Blindspot' Spoilers: Kurt & Jane Get 'Intimate'; What's In Store For 'Authentic Flirt' Jane Doe's (Jaimie Alexander) mysterious tats have lead the FBI to former agents, deadly fighter pilots, and jewel thieves, but the amnesiac's ink will set up the series' tour de force in "Evil Handmade Instrument.