It originally aired in six episodes on Rai 1 from January 16 to February 8, 2011 and was followed by a second season entitled Challenge to the sky (Sfida al cielo) in 2015.
Created by Leonardo Fasoli (Gomorrah) and written and directed by Michele Soavi, both seasons of Anti-Drug Squad are currently airing on MHz Choice and Amazon Prime, in Italian with English subtitles.
The first season opens with a flashback showing the death of Piazza's wife in a hit-and-run accident 13 years earlier, when their daughter was 4.
The 35 Billion Lire from that bank heist turns out to have provided the capital for launching the Eighth King of Rome's drug empire.
Deputy Police Chief Piazza's team are The Eighth King of Rome, aka Ivano Consanti (Stefano Dionisi).