H2O + Orthophosphates + Mission City + Corrosion + Origins MacGyver : Season 5 Episode 14

Mac and Desi travel with Bozer to his childhood home when his aunt dies in a tragic accident, however, they soon discover she may have been murdered for trying to expose the city’s contaminated water supply. Also, Riley, Matty and Russ continue to follow leads on their nano-trackers investigation.