Hornets' Nest is a 1970 Italian-American war film directed by Phil Karlson and starring Rock Hudson, Sylva Koscina, and Sergio Fantoni.

In Northern Italy in 1944, the entire population of the village of Reanoto is massacred by the SS for helping the Italian resistance movement. The only survivors are a group of young boys in ages from 7 to 14 led by Aldo (Mark Colleano, son of Bonar Colleano and Susan Shaw) who witness the mass execution and vow revenge.

That night, a stick of US Army paratrooper saboteurs jump into the area with a mission to destroy a strategic dam with the partisans prior to the Fifth United States Army's advance into the area. Their drop zone has been discovered by the Germans, who kill them all except the leader of the paratroopers, Captain Turner (Rock Hudson), who is rendered unconscious and goes unnoticed by the Germans when he lands in the branches of a tree. The Germans capture the demolition equipment from the dead Americans.

Aldo and his friends rescue Turner by spiriting him away from the ambush. Realising that Turner needs medical attention, they kidnap a German female doctor (a blonde Sylva Koscina) to nurse him to health, and keeping her captive even after Turner's recovery.