Stargate SG-1 (1997)

S5E13 Proving Ground

Title: Testing the Waters Plot: SG-1 is tasked with mentoring a group of inexperienced cadets, but when Colonel O'Neill discovers a potential extraterrestrial threat at the SGC, he must quickly thrust them into a genuine combat scenario. With the stakes high, the team faces unexpected challenges as they learn to rely on each other and their training in a race against time.