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- Episode aired Mar 29, 2010
- TV-PG
- 26m
When a mysterious poison starts polluting the Thames, K9 and the kids must figure out the source, before it destroys everything in its path.When a mysterious poison starts polluting the Thames, K9 and the kids must figure out the source, before it destroys everything in its path.When a mysterious poison starts polluting the Thames, K9 and the kids must figure out the source, before it destroys everything in its path.