At the World's Fair in Seattle, two friends, Mike and Danny, try to make a living, with Mike caring for a young girl named Sue-Lin whose uncle has gone missing, while Danny tries to pay off his gambling debts by playing poker.

It Happened at the World's Fair
Two friends, Mike and Danny, take a thrilling adventure to the World's Fair in Seattle, piloting a crop duster biplane seized due to Danny's debt from an unpaid gamble. Along the way, Mike forms a heartwarming bond with a young girl and meets a charming nurse at the fair.