"Drenching Dallas," the first-season finale of NBC's A.P. Bio, originally aired on May 3, 2018, featuring Jack Griffin helping his students execute a revenge plot while his own hopes for a return to Stanford are thwarted. The episode, directed by Lynn Shelton, balances this plot with a sub-plot of fellow teachers believing the school is haunted. Read a detailed review and community discussion on Reddit r/APBioNBC . AI responses may include mistakes. Learn more