Complex sentence: To test if the nano bombs are a bluff, Digger tricks Slipknot into trying to escape; this results in his head blowing up and Digger a reluctant member of the group.
Split into simpler sentences: To test if the nanite bombs are a bluff, Digger tricks Slipknot into trying to escape. This results in his head blowing up and Digger a reluctant member of the group.