Summary
A monster that wakes only once every hundred years is about to stir beneath HQ, and the agents have to pin down the exact day so they can lull it back to sleep. The clues are all about the calendar: a summer month with just 30 days, and a weekday — never a weekend. A fun bit of calendar detective work.
Viewer safety
All agesMild peril
A sleepy cartoon monster threatens HQ — suspenseful but silly, never scary.
Common Sense Media — not yet ratedIMDb Parents Guide — not yet rated
Our rating is a quick teacher-to-teacher guide — preview before showing.
Teaching resources
Discussion questions
Discussion
The agents narrow down a single date using only calendar clues.
- Which months have exactly 30 days? Which season counts as summer?
- How does "only on a weekday" help cross days off the list?
- How could you use a calendar to figure out a day from clues like these?
Quick work-a-long
Vocabulary: calendar, month, weekday, weekend.
Try it: On a calendar, circle every weekday in one summer month, then cross off any with 31 days — what's left?


