The men of the Patrol are the warriors and policemen of space. And none have more dangerous assignments than those from the P.I.G. and R.O.B.O.T. battalions!

The time has come when the Patrol is spread too thinly around the galaxy. New planets are constantly being colonized, bringing fresh problems of law-enforcement and defense against alien attack.

So new solutions are sought: like the setting-up of special units called P.I.G. and R.O.B.O.T. - units that are self supporting and equipped to handle even the most dangerous situations.

These two stories show Harry Harrison at his best: fast, inventive and exciting.