Halfway through the summer, tempers flare and the captains question their crews' loyalty. Shawn threatens to quit the family business. Kris comes to blows with Steve R. Emily rushes Shem to the ER. Hank reaches the end of his patience with Scott.

While Hank tests Mother Nature by staying out dredging in the storm, Shawn races to bring his dredge home. Emily and Glen head inland to river dredge. Her crew sews seeds of mutiny. Kris almost drowns from faulty equipment and Steve R's inattention.