A glitch in the television pulls a viewer into a world of multiple, perilous adventures. Trapped within the screen of a prototype television, the protagonist must navigate one of three distinct scenarios to find their way back to reality. They can choose to captain a starship and battle aliens, journey through a medieval land to slay a dragon, or seek a cure for a zombie apocalypse. The narrative framework is choice-driven, with the reader's decisions directly impacting the outcome and leading to one of twenty possible endings.

The premise of Channel U suggests an engaging, choice-driven narrative experience, particularly appealing to younger readers who enjoy interactive storytelling. The inclusion of diverse genres like science fiction, fantasy, and horror within a single framework offers variety and replayability. The structure, with its multiple paths and endings, is designed to empower the reader as the central decision-maker in the unfolding events. This format typically fosters a sense of agency and immersion, encouraging exploration of different story outcomes.