This is a 5 vs 5 drill but it can be adapted to be 6 vs 6 or 7 vs 7 depending on the number of players you have. The drill is played in a rectangular area about 30 yards long by 20 yards wide and can also be adjusted if you have more players. The game starts with one team possessing the ball and all 5 players activated. The other team will have three players activated while two players wait outside their end line. The goal for the team with possession is to make 5 passes in a row. Every time they make 5 passes in a row they earn 1 point. When a turnover is created by the other team then they have to get the ball to one of the two players waiting outside their end line. This is referred to as the "Rescue". Once they make a pass to one of them then both players are activated and two players from the team that initially had possession have to go wait outside their end line. Now the team that just activated their two players needs to make 5 consecutive passes in order to earn a point.
The idea behind the game is to give the team with possession a bit of an advantage so they can get the feel of possessing the ball for a period of time. With two extra players they should be able to possess the ball for a while. Consistent support, communication, and creativity should be encouraged.