The Hardy Boys: Season 1, Episode 6

1 - 6: In Plain Sight

Frank relents and takes the entrance exam to Rosegrave Preparatory School. Callie Shaw is also taking the test and the two become close as they work together to solve the exam's last escape room puzzle in Gloria's study. Unwittingly they discover a hidden door, marked by a similar symbol they've seen before. Meanwhile, when Joe finds out the Tall Man has escaped from jail, he quickly tries to find a safe place for his lucky charm.