Ivan Kolařík, a member of the group, committed suicide on 1 April 1942, after losing his fake ID, in a desperate attempt to shield his family from reprisals following the compromise of his cover.
First Lieutenant Adolf Opálka and Karel Čurda travelled to Prague to join Operation Anthropoid, aimed at assassinating high ranking German SS official Reinhard Heydrich.
The operation successfully eliminated Heydrich, but in the aftermath, as mass executions started during the second martial law, Čurda sought refuge with his mother in Nová Hlína.
Unable to withstand the physical and emotional strain and seeking to protect his family, Čurda betrayed his military oath by providing the Gestapo with information after an announcement promising leniency for such intelligence.
Čurda subsequently assisted the Gestapo in identifying the bodies of fellow parachutists, receiving a portion of the 10 million Reichsmark reward offered by the occupiers.