This page of the guide will cover the mission 'South Central Leak: Davis', available within 'The Contract' update for GTA Online.

South Central Leak: Davis

Getting closer to unraveling the mystery of Dr. Dre's phone theft, you begin enlisting the help of Franklin's associates. Head to the waypoint to jump in a Cavalcade and drive to a secondary location where you will need to eliminate a large number of drug dealers. Once the area is clear, steal the van with meth-making equipment and then evade the Lost MC motorbikers pursuing you, and any wanted level should you acquire it - it is likely you will due to your AI companions return fire, so be prepped to find somewhere to lay low.

With the heat off you, drive to the waypoint to drop the van off at a secure location and the mission will complete.