Team Minato

Team Minato was a team that was headed by the future Fourth Hokage, Minato Namikaze with Kakashi Hatake, Obito Uchiha and Rin Nohara being the members of the team.

History
In the Kakashi Gaiden, which was set during the Third Shinobi World War, the team went to Kusagakure to destroy Kannabi Bridge to cut off supplies for Iwagakure ninja. Rin was captured by Iwagakure ninja during the mission. Kakashi and Obito rescued her but Obito was crushed by a cave-in caused by the Iwagakure ninja Kakkō. Obito gifted Kakashi his remaining Sharingan and tells them to flee, before the second cave-in seemingly killed him.

However, in reality, Obito was saved by Madara Uchiha and was recuperating for an unknown period of time.

After Rin's forced sacrifice to save their village from the Three-Tails that was sealed inside her, despite his earlier intent to rejoin her and Kakashi, Obito decides to have everyone continue to believe he died as he became a disillusioned shell of his former self. Some time later, Minato would sacrifice his own life to seal away the Nine-Tailed Demon Fox, who was released on Konoha by the masked man who was Obito in disguise. After Minato's death, Kakashi believed he was the sole survivor of Team Minato.

However, during Fourth Shinobi World War, Kakashi shockedly acknowledge that Obito, still alive, is Tobi's true identify, who he faced off many times before. After being reincarnated by Orochimaru, Minato arrives at the battlefield and soon learns the truth that his former student had been alive the whole time while realising his student's role in the Nine-Tails' Attack on Konoha. When Obito, the Ten-Tails' jinchūriki is defeated, Minato managed to stops Kakashi, who only wants to take the finishing blow, from killing his other student. The three then talk about the past, their regrets over Rin's death and how everything had turned out. Near the conclusion of the war, Obito sacrificed himself to save Naruto from a killing blow. Using his Kamui and some of the Six Paths' power he stole from Madara, Obito's soul returned and temporarily merged itself into Kakashi, letting the jōnin use his powers his powers to help Team 7 defeat Kaguya Ōtsutsuki. Upon the war's conclusion, both Minato and Obito's souls moved on to the Pure World, leaving Kakashi as the team's sole survivor.

Trivia

 * The team makes a cameo before their actual introduction in chapter 122 and Naruto episode 72 during a flashback of the Third Hokage, and on the cover of chapter 16.
 * Kakashi noted many times that the current team he looks after shares similar dynamics to his childhood group. The resemblance is furthered with a photograph of Team Minato being nearly identical to the photograph of Team 7.
 * Aside from Kakashi, all members of the team became a jinchūriki at one point or another.