Hunkeler's last official act went awry: a diamond courier evaded surveillance, the goods ended up in the Basel sewage system, and Lüdi suffered life-threatening injuries. Plagued by guilt, pensioner Hunkeler goes in search of the "silver pebbles". Ultimately, even as a retiree, he is ahead of the pack with his sense of the longings of the little people.
| Actor | Role |
|---|---|
 Mathias GnädingerKomissär Hunkeler | Komissär Hunkeler |
 Gilles TschudiMadörin | Madörin |
 Jürg LöwStaatsanwalt Suter | Staatsanwalt Suter |
| MMarcello MontecchiToni Huber | Toni Huber |