Arrow › Season 4 › Episode 13
Arrow Season 4 Episode 13“Sins of the Father”
The CW · S4E13 · Aired February 10, 2016 · 60 min · ★ 7.1/10
Oliver refuses to kill Malcolm in return for Thea's cure, and Malcolm refuses to surrender rulership of the League to save his daughter. Civil war tears through Star City as the two factions fight it out. Meanwhile, Felicity discovers that the Calculator is her father and tests him to see if he can be trusted.
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