Season Four

Blood Debts

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While doctors try to save the life of someone close to him, a vengeful Oliver goes on a brutal manhunt to find Damien Darhk. After Lonnie Machin resurfaces with a similar goal, Oliver uses him to track his quarry.
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News & Spoilers


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).