Within the exercise one player is doing all the shooting & five players are laying the ball off to them.
The player without the ball starts the exercise. Once they move across the line in front of the first player, that player pops the ball out to them with a hand pass.
The attacker without thinking tries to score a point. They then move along the line at pace receiving & shooting each ball at speed.
The idea behind the exercise is for the shooter to try & get five rapid shots off without having to wait in line for a shot every minute or so.
It helps them to spot & fix their errors or to repeat their successes in an instant which is more match realistic
Progression
Put a defender in the drill to attempt to block the kicker.