Hold: A Medical Mystery

Sarah and Jackie have promised their partners they were out of the detective business, so when they go on their dream trip to Cuba, they are not looking for trouble. But all their plans go out the window when a desperate plea from a Cuban transplant surgeon puts the duo in serious danger on the same day the four most prominent immunologists in the world are killed in a car accident in Chicago. Will Sarah and Jackie be able to solve this mystery before someone else gets hurt?