The What's in the Box Challenge features Kolin attempting to correctly identify five mystery objects placed inside a cardboard box. He uses both hands to feel each item, narrating his sensory experience and initial reactions before revealing what each object is.
Throughout the challenge, Kolin identifies a kiwi, slime, a wig, a small cupcake, and a decorative plant. He maintains a lighthearted tone, balancing his apprehension about what he might touch with his determination to successfully name every item correctly.