A Wake Up CallDetective "Parks" Pat is back. Now an established and accepted member of the homicide squad, she unexpectedly brings a new case to the table when she stumbles across a body as Canada Day dawns. While it was initially assumed to be an accidental drowning, the autopsy results say otherwise.Margie is soon off and running, but the lack of witnesses has her going in circles. Meanwhile, the brass wants the investigation put to bed before the city is flooded with Calgary Stampede tourists and dignitaries.