This is another Larissa mission. She calls you asking for help, saying that she's been injured by Syndicate hit men and is hiding at the Stadium. You have to head there in under 90 seconds but be warned, it is a complicated route to get there, plus, the first two waypoints are duds - they move once you get to them, so you need to get to the first one with over 30 seconds left for the remainder of the mission to be possible.
Once you locate Larissa, you wlil be set upon by numerous members of the Syndicate. Take them out and eventually two will drive up in a car. Deal with them and steal the car for yourself, then drive Larissa back to her house.