17. Dewey's Dog

Dewey finds a dog, hides him from his parents, and trains him to attack Malcolm and Reese on command. When Craig comes by to return some dry-cleaning, Dewey holds him hostage. Craig manages to escape but the dog mauls him. Because the dog is gone, Malcolm and Reese torture Dewey as revenge. Hal and Lois go on a date, and neither will admit that they caught Craig's flu. In Alaska, Francis comes face-to-face with his former commandant Spangler, who blames him for not only losing his job at Marlin Academy, but also his desertion. Francis feels sympathy for Spangler and gets him a job at a retirement home that gives him free rein to bully the elderly.