The fake submarine is said to be the U-613. In reality, the U-613 was lost with all hands in 1943.
This was one of four episodes from the original 1966-1973 series remade during the first season of the "rebooted" series in 1988-1990. The remake did away with the Nazi war criminal angle (undoubtedly because of the additional two decades that had elapsed since 1969). Instead, the IMF's opponent was a rogue Navy admiral with a computer virus he was willing to sell to the highest bidder.
From the dossier scene, it is learned that the Hartford Repertory Company once again will assist in the mission. Though this is their third assignment, this is the first time that members of the company participating in the mission are present during the apartment briefing scene.
The beautiful Lee Meriwether, a former Miss America, recalled her makeover guise of a beaten, tortured and exhausted casualty took only fifteen minutes, whereas to make her up normally took three hours.
The maps of the police dragnet searching for Schtelman show a street named "Gelle", after Bruce Geller, the creator and executive producer of the series.