Scott Masterson, Chuck Gavin, and Beth O'Brien are the Flying Angels, a stunt pilot trio. One day, during one of their shows, they are consumed by a blinding light, only to return unharmed. The three are later informed that they have become hosts to three Ultra Warriors from the planet Altara (Ultra) in Nebula M78. Together, as the Ultra Force, they defend the Earth from extraterrestrial monsters called the Sorkin Monsters.
Ultraman: The Adventure Begins provides the following tropes.
- And the Adventure Continues: The threat posed by the Sorkin Monsters may be over, but the Ultra Force still remains together to combat future threats to Earth.
- Finishing Move: The Granium Light Ray, which can be performed by Ultraman Scott, Ultraman Chuck, and Ultrawoman Beth. It is a form of the signature Ultra Beam that all other Ultras use.
- Harmless Villain: The comical child monster Zoon. The only thing that's threatening about Zoon is its size. Chuck fortunately relocates him to another planet instead of destroying him.
- Killer Rabbit: King Myra, the most powerful of the Sorkin Monsters, starts out as a small and adorable monster called Wylon. It gets more powerful and ruthless when it grows every 90 minutes.
- Landmarking the Hidden Base: Mount Rushmore is the Ultra Force's base of operations. It comes equipped with advanced fighter planes that the Flying Angels can use, as well as three robot companions.
- Plant Aliens: The vegetation monster Green Shocks, which has accelerated regeneration and powerful vines.
- Robot Buddy: The Ultra Force is assisted by three support robots. These robots are originally named Combot Model MF842, Combot Model BA666, and Utiloid Model ZQ14582, but they are named by Scott and Beth as Ulysses, Samson, and Andy, respectively.
- Scary Shadow Fakeout: When the pilots first see Andy's show they think he must some huge threatening thing. He's actually a cute little bot that barely comes up to their waists.
- Shock and Awe: The electronic machinery monster Garuballade. It can assimilate with scrap metal from all kinds of machinery to form its body.
- The Smurfette Principle: Ultrawoman Beth is the only female in the Ultra Force, though she's not the only female Ultra in the Ultra Series (other female Ultras include Mother of Ultra, Yullian, and Ultrawoman Grigio).
- ¡Three Amigos!: Scott, Chuck, and Beth. It also carries over to their Ultra forms, where they can perform a three-person Finishing Move called Triple Power.
- Transformation Trinket: Averted, unusually for an Ultra story; the three pilots would automatically change to their superhuman forms when they were in life-threatening danger (they can also transform at will in some instances). It's been speculated this might've been part of why it was never picked up for a full series, as a common device for building tension was separating the hero from his henshin item. If he changes without having to do anything, it's hard to create drama.
- Two Guys and a Girl: The three main characters.