A pet dog is being credited to saving a family’s life after he alerted the sleeping family to a fire in their Town of Jackson home early Monday, and the four people inside were able to escape the blaze. According to the Washington County Sheriff's Office, the fire in the 4700 block of Jackson Drive was reported just after 12:30 a.m.The first deputy to arrive found the garage portion of the two-story home was engulfed in flames. The Jackson Fire Department responded to the fire and was assisted by the Fillmore, Germantown, Newburg, Richfield and Slinger Fire Departments. Firefighters controlled the blaze quickly and prevented it from spreading to the rest of the residence. The garage was a total loss, as was a small room attached to the garage. The rest of the house sustained smoke damage. The cause remains under investigation by the Washington County Sheriff's Office. Initial reports reveal there were no working smoke detectors in the house. The American Red Cross is assisting the family.