Imaginative Malachi is the son of a widowed father working as a businessman bringing his eager son to work. Saddened when told not to bother his busy father, a stack of letters waiting to be delivered on his father’s desk triggers his imagination, transforming prison-like cubicles into a futuristic spy base where he is tasked a mission to help deliver the coded messages to win his father’s pride before the manager returns to the office at noon. Eventually reminded of his deceased mother by the remaining message addressed to his father and now being supervised, he realises that all he wanted was to be accepted by his father. Reflecting on the situation, he breaks the obligatory walls imposed by the manager and embraces his father, successfully delivering the letter.
To add a bit of extra context: The mother and the child used to send letters to their father every time he was out at work.