The story of the defense of the mission-turned-fortress by 185 Texans against an overwhelming Mexican army in 1836. The story of the defense of the mission-turned-fortress by 185 Texans against an overwhelming Mexican army in 1836. The story of the defense of the mission-turned-fortress by 185 Texans against an overwhelming Mexican army in 1836. The story of the defense of the mission-turned-fortress by 185 Texans against an overwhelming Mexican army in 1836.