Ruff's Case of Blues on the Brain

S2 E2: When Ruff tries to fix a leaky faucet, it ends in disaster—flooding the doghouse and ruining the artwork on his walls. Now he’s got the blues, but the FETCHers wouldn’t understand because they’re humans, and humans only use 10% of their brains. The kids disagree with this urban myth, so Ruff sends Bridget and Mike to a neurologist to prove (or disprove) it. He then sends Madi and Willie to meet some blues musicians to play the blues… or are they actually Blue Man Group?