The Thanatos Guild Arrow : Season 6 Episode 16
TV-14 The CW 42m
Aired: March 29th, 2018 @ 9:00 PM EST on The CW
Nyssa Al Ghul returns to Star City to warn Thea that a group of renegade League of Assassins members are planning to attack her. This group, led by Athena, is intent on finding a mysterious box that Malcolm left behind and will stop at nothing to get it. Nyssa helps Oliver come to a life-changing realization.
