Synopsis:

Jason, who spends his time passing from one prison to the next and always escaping with great ease, once again manages to flee while being transferred to a Greek prison. This time though he is aided by someone who wants him to do a job. Jason is therefore forced to recover a microfilm under extremely difficult circumstances. Jason succeeds but discovers that the microfilm interests others as well. Jason is surrounded by misleading and unclear intentions and with the help of a friend manages to rout the two rival bands, unmasking a Russian Spy and entrusting the microfilm to the original client. But Jason is caught once again by the Greek authorities providing him with the possibility of the nth escape.