Divide all of the players into groups of 3 in each line.
1. Each player skates from the blue line to the red line twice as shown.
2. Then the next player in the line repeats it and so on and the drill continues for 4 minutes.

Add variations for example: one puck per group, start off on there knees or stomachs, going backwards on the way back etc.
It's a good drill to do if you have a lot of players who have a bad habit of skating by the puck carrier and doing a big loop instead of stopping.
The main thing with this drill is that everyone is going full speed for the duration of the 4 minutes.
The threat of adding time to the drill usually takes care of that though.