Palermo Milano solo andata

Turi Leofonte (Giannini) is a former mafioso who accepts to be a witness at a process involving very important people in the organization. For the Mafia, Leofonte is dangerous, that's why he has to be killed. A police group led by Nino Di Venanzio(Bova) accepts to protect him and to escort him till Milan where the process has to take place.