Pocoyo finds a box of unusual whistles. To his delight he discovers that each whistle makes a different noise and summons a different one of his chums. Fun fun fun... until that is the tables are turned on Pocoyo and there's a whistle that summons him too. Everyone falls out and it takes Baby Bird being upset to make everyone realise how silly they're being.
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Pocoyo discovers a box with a group of whistles and discovers a whistle that calls Pato. Pocoyo...