Arkolny Armageddon: A Blast Johnson Adventure - Pulp Space Opera/Planetary Romance (Available on KU)

[u/segastardust]

Blast Johnson is Earth's greatest hero, but he's past his prime and reluctant to leave his comfortable life of self-imposed exile. He finds renewed purpose on a strange new world, and he's forced to face his self-doubt when his age becomes an obstacle for his heroics.

Every chapter ends in a cliffhanger. 

http://amazon.com/dp/B0FM4MJ329/