A World War II Bomb - MacGyver
"Windmill + Acetone + Celluloid + Firing Pin"

On MacGyver Season 4 Episode 4, as Mac tries to rescue survivors from a collapsed building, he discovers an undetonated bomb from WWII beneath the rubble,

Heart Attack - MacGyver
"Kid + Plane + Cable + Truck"

On MacGyver Season 4 Episode 3, Mac and the team are mid-flight when their pilot has a heart attack, then discover the medical emergency was intentional.

Stealing a Project - MacGyver
"Red Cell + Quantum + Cold + Committed"

On MacGyver Season 4 Episode 2, DoD General Acosta recruits Mac to steal a highly classified project from a military lab in order to find flaws in its security.

Tracking Down a Bioweapon - MacGyver
"Fire + Ashes + Legacy = Phoenix"

On MacGyver Season 4 Episode 1, ex-MI6 agent Russ Taylor recruits former Phoenix Foundation members Mac, Riley, Bozer, Matty and Desi to hunt down a bioweapon.

An Impossible Choice - MacGyver
"Mason + Cable + Choices"

On MacGyver Season 3 Episode 22, Mac is given an impossible choice: save the life of a friend, or save the lives of hundreds of innocents on the season finale.

Will Matty Commit Treason? - MacGyver
"Treason + Heartbreak + Gum"

On MacGyver Season 3 Episode 21, Matty must decide if she's willing to commit treason in order to save a friend's family from a criminal organization.

Undercover Backpackers - MacGyver
"No-Go + High-Voltage + Rescue"

On MacGyver Season 3 Episode 20, two American tourists go missing while doing a "No-Go Scavenger Hunt" through some of the world's most dangerous countries.

Helping Refugees - MacGyver
"Friends + Enemies + Border"

On MacGyver Season 3 Episode 19, Mac and Desi help a group of Syrian refugees pursued by human traffickers and Bozer is trapped in a car rigged to explode.

The Phoenix Gets Help - MacGyver
"Murdoc + Helman + Hit"

On MacGyver Season 3 Episode 18, the Phoenix is forced to get help from Murdoc when Nicholas Helman resurfaces planning to carry out a killing spree.

Finding a Missing Man - MacGyver
"Seeds + Permafrost + Feather"

On MacGyver Season 3 Episode 17, the team must solve a locked-door mystery when a man working inside a remote, ultra-secure international seed vault disappears.