With two great meets under their belt, the University of Wisconsin-Milwaukee cross country teams are back in action this weekend with a trip just across the state line for the College of DuPage Invitational in Warrenville, Ill. Friday afternoon.The open 5k kicks things off at 3:30 p.m., followed by the women's 5k at 4:15 and the men's 8k at 5 p.m.