Ep 1. Fire + Ashes + Legacy = Phoenix

MacGyver (2016) season 4 episode 1, titled "Fire + Ashes + Legacy = Phoenix", follows the story of Angus MacGyver, a secret agent who uses his extensive scientific knowledge and problem-solving skills to save lives and defeat criminals. The episode begins with Mac, as he is affectionately called, receiving a call from his old mentor, Harry, who informs him about a dangerous situation in Mexico. Harry tells Mac that a gang of criminals has stolen a top-secret weapon from a high-security facility and is planning to sell it to the highest bidder. The weapon is so powerful that it can cause widespread destruction and chaos if it falls into the wrong hands.

Mac decides to take on the mission and sets out on a journey to Mexico. He reaches the crime scene and begins investigating the theft. But soon, he realizes that the criminals have been tipped off about his arrival and are one step ahead of him. Mac finds himself in grave danger as the criminals capture him and try to extract information about his plans. However, Mac being Mac, manages to escape their clutches and sets out on a mission to recover the weapon and bring down the criminals.

In the course of his mission, Mac meets a beautiful and feisty agent named Desi who works for the Phoenix Foundation, a secretive organization that Mac is a part of. Desi proves to be a valuable ally as she helps Mac infiltrate the criminals' hideout and retrieve the weapon. But the mission is far from over, as the criminals decide to attack the Phoenix Foundation headquarters to get revenge on Mac and Desi.

The rest of the episode is a thrilling action-packed spectacle as Mac and Desi team up to defend the Phoenix Foundation and save innocent lives from the criminals' wrath. Mac uses his scientific knowledge to create ingenious contraptions and gadgets that help him overcome various obstacles and win the battle. Along the way, Mac also faces some personal demons as he comes to terms with his family history and legacy, paving the way for an emotional finale.

Overall, "Fire + Ashes + Legacy = Phoenix" is a gripping and high-stakes episode that showcases Mac's ingenuity, heroism, and heart. Fans of the show will not be disappointed as they witness Mac and Desi's growth as characters and see the Phoenix Foundation face its toughest challenge yet.