In this volume of the series of short science fiction stories we discover robot lawmen, psionic aliens, evil scientists and alien super weapons.

The stories are: 'Arm of the Law' by Harry Harrison, 'Graveyard of Dreams' by H Beam Piper, 'Survival Type' by JF Bone, 'The Black Lamp' by SP Meek, 'The Bluff of the Hawk' by Anthony Gilmore and 'Third Planet' by Murray Leinster.