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Season 1, Episode 9: Year's End
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Oliver discovers that after he and his father went missing, Moira and Thea stopped celebrating Christmas. Determined to make up for lost time and restore a sense of normalcy to the Queen household, Oliver decides to throw the family a Christmas party. Meanwhile, Tommy asks Laurel to spend Christmas with him but she points out that Christmas was also her sister Sara's birthday and she needs to be with her father. Tommy suggests changing things up might be the best way for everyone to heal but Laurel isn't sure her father is ready for that. Meanwhile, Diggle tells Oliver someone is murdering the people on his father's list with arrows, which sends Oliver off to face his toughest adversary yet.
All Episodes - Season 1
Episode 1
Pilot
Episode 2
Honor Thy Father
Episode 3
Lone Gunmen
Episode 4
An Innocent Man
Episode 5
Damaged
Episode 6
Legacies
Episode 7
Muse of Fire
Episode 8
Vendetta
Episode 9
Year's End
Episode 10
Burned
Episode 11
Trust But Verify
Episode 12
Vertigo
Episode 13
Betrayal
Episode 14
The Odyssey
Episode 15
Dodger
Episode 16
Dead to Rights
Episode 17
The Huntress Returns
Episode 18
Salvation
Episode 19
Unfinished Business
Episode 20
Home Invasion
Episode 21
The Undertaking
Episode 22
Darkness on the Edge of Town
Episode 23
Sacrifice