Dizi Adı: Allegiance
Bölüm Adı: Chasing Ghosts
Sezon/Bölüm: 1. Sezon 4. Bölüm
Yayın Tarihi: 26 Şub. 2015

A surprising discovery leaves Alex reeling as he tries to adjust his theories in light of what he found at Philadelphia City Hall. Meanwhile, the Rezident questions Katya and Mark’s dedication and Natalie discovers the dangers of Black Dagger.