Gosha and Sergey inspect the hangar where Sergey was last seen. Smolina discovers the missing case of the "Faceless Ones" from her safe and suspects that there is a "mole" in the department.

The boss informs Smolina that he accidentally took the case of the "Faceless Ones." Sergei and Diana are looking for the missing toastmaster who is supposed to lead their wedding.

Gosha and Sergey go to investigate the missing dolphin. Ionov, Trubnikov and Fedyanin are trying to decipher the surveillance video related to the "Faceless" case.