Mighty Morphin' Lone Rangers

From Wiki and Wiki:

At a sideshow in a San Francisco fair in 1933, The Power Rangers, Adam, Kimberly, Billy, Aisha, Rocky, and Tommy, who idolize a legend known as the Lone Ranger, participate with Bulk and Skull in a charity sky dive for Angel Grove in anticipation of Ryan's Comet which will pass near Earth in two days.

After the Rangers jump, Bulk and Skull finally work up the nerve to introduce themselves to Tonto, an elderly Comanche Native American. who proceeds to jump as well, landing in a downtown construction site in an Old West adventure.

In Colby, Texas on March 18, 1869, the construction workers uncover a giant egg where they are digging the uncompleted Transcontinental Railroad, managed by railroad tycoon Latham Cole. The egg's appearance alerts lawyer John Reid who contacts the Rangers. He explains that 6,000 years ago he tricked a shape-shifter known as Tonto and the outlaw Butch Cavendish and trapped them in the egg and buried it to prevent them from taking over the universe.

Dan Reid, John's Texas Ranger brother sends them to recover the egg, but Rita Repulsa, Lord Zedd, Goldar, and Mordant derail the train and release Butch before the Rangers arrive. Tonto is jailed. Cavendish's men has several "oozelings" attack the Rangers and Cavendish cuts out and eats Dan's heart.

While the Rangers are fighting, Tonto, who has escaped from jail, infiltrates the Command Center and severely damages it. However, a white spirit horse awakens John as a "spirit walker", and Tonto explains John cannot be killed outside of the time-warp tube that keeps him alive.

As John is thought to be dead, the destruction of the Command Center disables the Rangers' morphing powers, so they wear masks to protect their identities. Reid sends them to the planet Phaedos to search for a silver bullet made from the fallen Rangers' badges and tells them to use its greater power to defeat Cavendish and protect the egg.