Birdwatcher Professor Petersen goes on a summer trip to a remote rocky island. The uninhabited island is home to birds, disturbing scantily clad young girls and a gang of bootleggers. Pat Patachon reluctantly toil for the smugglers, who take Professor Petersen prisoner. The two friends are assigned to guard the suspected spy Petersen, but soon escape together with their new pal. (Stumfilm.dk).
| Actor | Role |
|---|---|
 Carl SchenstrømNot listed | Not listed |
 Harald MadsenNot listed | Not listed |
 Lili LaniNot listed | Not listed |
 Svend MelsingNot listed | Not listed |
 Maria GarlandNot listed | Not listed |