Tani and Junior must plot an escape for themselves and several civilians after they become trapped inside a deadly tunnel collapse; Eddie the dog sniffs out a bomb that has been planted in McGarrett's home.
Holmes and Watson discover a woman's death is connected to a piece of artwork that has ties to a previous crime.
Lady Mae wants to preach at women's day but Deacon Sykes is not convinced; Basie wants Jacob to run a new community centre that will be built near Calvary; Lady Mae confronts Mavis.