ORIGINAL AIRDATE: November 21st, 1988 ---
MacGyver reunites with some old friends to dig up a time capsule from their childhood.
MISSION: A tragedy from MacGyver's past is revisited when he and friends dig up a time capsule in their hometown. The friends must team up to diffuse a new threat involving guns, drugs, and their children.
This week's highlights include:
 
Young MacGyver graduates from hand guns to nuclear weapons.

Assassination of William McKinley (History)

The 25th President of the United States, William McKinley, was shot and fatally wounded on September 6, 1901, inside the Temple of Music on the grounds of the Pan-American Exposition in Buffalo, New York. McKinley was shaking hands with the public when he was shot by Leon Czolgosz, an anarchist. The President died on September 14 from gangrene caused by the bullet wounds. McKinley became the third American president to be assassinated, following Abraham Lincoln in 1865 and James A. Garfield in 1881.

Check out the article on wikipedia: https://en.wikipedia.org/wiki/Assassination_of_William_McKinley.

Watch S4E2: "Blood Brothers" on CBS's website or check the alternative streamability of this episode here.