Lamar is in trouble again. Will Trevor and Michael put their differences aside and pull off this rescue.

Head to Franklin's house and watch the cut scene.

Now head out to the Saw Mill near Paleto Bay. It's a long windy drive, so drive fast and but carefully.

Once your at the way point, Trevor and Michael are waiting for you and a cut scene begins.

You will be automatically switched to Trevor.

You can start Trevor and Franklin in one of three different assault positions. The positions farther away will have less enemies to handle at a given time. Closer positions will have more enemies at once. Choose the position that best fits your strengths. If you're able to handle multiple targets that come at you fast, begin closer. If you want a slower pace, start further back.

Now do the usual, cover, shoot, and move when clear.

Make your way to the rear of the Saw Mill.

Now switch to Michael.

Take out the snipers on the roof.

Now switch back to Trevor or Franklin and keep shooting your way to the rear of the building.

Once you locate Lamar, head back toward Michael's position. Clearing out targets in your way.

Once clear, you will be automatically switched to Franklin.

Now drive Lamar home and enjoy the conversation between the two.

Once you arrive at the way point, Franklin is confronted by Dave Norton and Steve Haines.

They ask Franklin to kill Trevor, setting up the final mission.

To get gold:
Headshots - Kill 18 enemies with headshots. Use auto aim, push up, and then shoot.
Accuracy - Finish with a shooting accuracy of at least 70%.
Three Way - Kill an enemy with all 3 characters. Switch to each character and kill an enemy.
Time - Complete the mission within 13 minutes and 30 seconds. Drive fast there and back, and skip the cut scenes.