The "Concordia" trading company in Würzburg is a secret headquarters of the MID, a secret service agency of the US Army. For years, espionage, sabotage, and diversion operations originated from here in order to undermine the Socialist Republic of Germany. A favorable moment for a military attack approaches and plans are developed. These plans are placed in the hands of Major Collins, who keeps them in a safe. Hansen has worked for him for many years, but also for the Stasi as a double agent. Security Chief Colonel Rock knows there is a leak, but Hansen has passed every test thrown at him. He is trying to deal with his current assignment: acquiring the plans so they can be made public. His mission is to get them out of the safe and into the GDR without getting caught.
| Actor | Role |
|---|---|
 Alfred MüllerHansen | Hansen |
 Helmut SchreiberMID-Major Collins | MID-Major Collins |
 Ivo PalecFrantisek | Frantisek |
 Hans LuckeMID-Colonel Rock | MID-Colonel Rock |
 Werner LierckSchuck | Schuck |
 Martin FlörchingerOberst im MfS | Oberst im MfS |
 Peter MarxHartmann | Hartmann |
 Eva-Maria HagenPeggy | Peggy |
 Renate GeißlerGisela | Gisela |
 Eberhard EscheLeutnant im MfS | Leutnant im MfS |
 Rolf HerrichtMax | Max |
 Gerry WolffErzähler | Erzähler |
| FFredy BartenPortier im „Rixi“ | Portier im „Rixi“ |
 Marion van de KampAdelheid | Adelheid |
 Christine LaszarHella | Hella |
 Horst SchönemannNot listed | Not listed |
 Gerd E. SchäferNot listed | Not listed |
 Ingrid OhlenschlägerLiz | Liz |
 Hans Hardt-HardtloffNot listed | Not listed |
| NNorbert FlohrNot listed | Not listed |
| FFred LudwigNot listed | Not listed |
 Ralph BoettnerNot listed | Not listed |
| MMaximilian LarsenNot listed | Not listed |
 Achim SchmidtchenNot listed | Not listed |
 Hans KleringNot listed | Not listed |
 Werner SenftlebenNot listed | Not listed |
| HHans SieversNot listed | Not listed |