Arrow S4E12: Unchained
- Aired: 2016-02-03
- Time: 20:00:00
- Runtime: 60 minutes
Overview
Roy returns to Star City... working for a new villain, the Calculator, a genius computer hacker who plans to bring the city to its knees. Meanwhile, Thea's condition worsens, and in the past, Oliver takes the first step to leaving his darkness behind.