The CW have released the official synopsis for the midseason premiere of ‘Arrow’ Season 4, titled “Blood Debts.”

Official Synopsis:

“Blood Debts” — (8:00-9:00 p.m. ET) (TV-14, LV) (HDTV)

THE AFTERMATH — Oliver (Stephen Amell) must deal with the devastating consequences of Darhk’s (guest star Neal McDonough) last attack. Seeking revenge, Oliver goes on a brutal manhunt looking for Dahrk. Jesse Warn directed the episode written by Oscar Balderrama & Sarah Tarkoff. (#410). Original airdate 1/20/2016. (#410).  Original airdate 01/20/2016.