Using only a wrench and rope, MacGyver must diffuse a bomb set near the United Nations by his old nemesis, "The Ghost" (Niko Nicotera), a notorious criminal whose work killed his mentor, and track him down before he strikes again.
The team hunts for cattle thieves when livestock and a driver go missing; a mysterious bouquet of flowers frightens Vic.
Walt (Bryan Cranston) places Skyler (Anna Gunn) in a difficult spot with their new operation. And as Walt looks to protect himself against Gus (Giancarlo Esposito), Jesse (Aaron Paul) agrees to a dangerous proposition.