Bob Reynolds, a construction engineer, is constructing a dam. Finding himself in financial trouble, he is persuaded by John Brand to use a cheaper--but far inferior--cement to replace the cement he's been using. Brand, who is determined to ruin Reynolds, then talks him into buying worthless stock. Finding himself in desperate straits, Reynolds forges a check using Brand's name. Unfortunately the finished dam breaks and many people are killed. Under suspicion by the authorities, Reynolds desperate searches for a way out of his worsening situation.