In "Blaze and the Monster Machines: Truck or Treat!" from Blaze and the Monster Machines, Blaze, A.J., and their friends celebrate Halloween while racing to recover stolen candy. The episode introduces holiday traditions such as costumes and truck-or-treating, then teaches science concepts about light and shadows, including how shadows form when light is blocked and how shadow size and shape change with movement and distance from a light source. The story also features early engineering and technology vocabulary as Blaze becomes a reciprocating saw to solve a problem, along with counting and countdown practice. With teamwork, problem-solving, and critical thinking, the video supports elementary curricula in physical science, STEM, and social-emotional learning through an engaging Halloween adventure. Part of the "Blaze and the Monster Machines" series.