Blue's Clues S3E17
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S03E17 — Blue's Big Mystery
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Blue's Clues

S03E17 Blue's Big Mystery

2000-09-25

Someone is constructing a fort in the backyard of the Blue's Clues house, but we can't figure out who it is. In this episode, we don our detective hats and put our reasoning skills to the test. A mystery awaits us! Join us as we dive into the investigation, with some assistance from Mr. Salt and all our pals.

Season 3 Episodes

1
Blue's Big Treasure Hunt
1999-03-08
 2
Art Appreciation
1999-04-26
 3
Weight and Balance
1999-05-10
 4
What's That Sound?
1999-06-07
 5
Animal Behavior!
1999-06-21
 6
Blue's Big Pajama Party
1999-10-10
 7
Draw Along with Blue
1999-10-18
 8
Hide and Seek
1999-10-25
 9
Thankful
1999-11-15
 10
Blue's Big Holiday
1999-11-29
 11
Pool Party
2000-04-03
 12
Anatomy
2000-04-10
 13
Signs
2000-04-25
 14
Nature
2000-07-03
 15
Geography
2000-07-10
 16
Occupations
2000-07-17
 17
Blue's Big Mystery
2000-09-25
 18
Periwinkle Misses His Friend
2000-10-02
 19
What's So Funny?
2000-10-09
 20
Blue's Big Costume Party
2000-10-31
 21
Inventions
2000-10-23
 22
Blue's Play
2000-10-30
 23
Prehistoric Blue
2000-11-06
 24
The Wrong Shirt (Opposites)
2000-11-13
 25
Words
2000-12-05
 26
Shy
2001-03-12