In the mid-1970s, New Zealand police launched an undercover program to infiltrate the country's most dangerous criminal organizations, including lethal motorcycle gangs and drug traffickers. This high-stakes initiative required officers to live among criminals, often adopting new identities and engaging in illicit activities to gain trust and gather evidence. The program, while successful in dismantling criminal networks, took a heavy toll on the agents involved, leading to long-term psychological trauma and personal struggles. Despite the risks and the controversial nature of the work, the program remains a critical tool for law enforcement, with many former agents reflecting on the profound impact of their experiences on both their personal and professional lives.