In Season 1, Episode 17 of , titled "Ivan," the FBI Task Force tracks a legendary cyber-terrorist after a high-stakes theft of the "Skeleton Key" —a prototype device capable of bypassing any American security firewall. The Real Ivan vs. The Imposter
The episode concludes on a hijacked train, where Elizabeth Keen eventually convinces Harrison to surrender after he threatens a mass-casualty event to prove his "power". Key Subplots & Theories [S1E17] Ivan
Initially, Raymond "Red" Reddington believes the thief is an elusive Russian hacker he has history with, known only as (played by Mark Ivanir). Red tracks him down in Russia, but the real Ivan reveals that someone is actually impersonating him to hide their tracks. In Season 1, Episode 17 of , titled