The previous two documentaries prompted a WADA independent investigation that led to suspension of the All-Russian Athletics Federation's (ARAF) membership in the IAAF last November.
"We conducted our own investigation in that respect in the past few months…and its outcome is rather worrying," the journalist stressed.
The new ARD documentary is scheduled to go on air on Sunday.
To settle the doping scandal, Russia’s Olympic Committee (ROC) promised to coordinate its probe into numerous violations of global anti-doping codes with the IAAF and WADA in mid-November.
Soon after the suspension of the ARAF, Mutko said that Russia would continue imposing harsh punishments on its athletes for doping use. In January, he expressed hope that the ARAF would be reinstated in all its rights by March.