Shazam!.

The live-action adventures of Captain Marvel! By uttering a single magic word young Billy Batson transforms himself into the world's mightiest mortal, Captain Marvel. The acronym of the first letters of the names of the six elders who train Billy with their respective special gifts: Solomon, wisdom; Hercules, strength; Atlas, stamina; Zeus, power; Achilles, courage; and Mercury, speed, in a word ... SHAZAM!