The fourth season of the American television series MacGyver consisting of 19 episodes.

The series began on October 31, 1988 and ended on May 15, 1989 while it aired on the ABC network.

The first season of the series to be broadcast in stereo.

The region 1 DVD was released on December 6, 2005.

[1] Back in his childhood home town, MacGyver is haunted by memories of his youth where a friend was killed by a gun while preventing his friend's son from suffering the same fate as a result of handling local drug dealers.