Overwatch is a game which is about future. It’s 2 teams fight each other for 1 thing. To win, there are 23 characters.
You need to choose 1 of the 23 characters. You have 5 teammates and with you will be 6 people. Then you battle. You can be in the defending side or the attacking side. Then you battle to escort the payload or defend it. You need to attack to capture the point. You can sometimes defend it because sometimes both the teams attack to the point.
This is the game. And there are maps to play on.