Renegades (A Grower's War Book 2);

The second book in NYT Bestselling Author DJ Molles' series, A Grower's War:

The nation is a powder keg, and Walter Baucom is striking sparks. Caught in the middle of feuding resistance factions and a Coalition that will stop at nothing to track them all down and wipe them off the face of the earth, Walter finds himself taking on a desperate mission to save his father, and rescue a resistance fighter that he was forced to leave behind.