Jan Bytnar, another resistance leader, was arrested by the Germans on 23 March 1943. The Polish underground army designed a plan to rescue him called "Operation Arsenal". Dawidowski participated in the planning and the execution of the operation. During the attack, he was seriously wounded in the stomach by fire from Germans in the gate house where Bytnar was held. Despite this he threw two grenades enabling his comrades to withdraw from the action. He later died in a hospital from his wounds, aged 22.