Sink or Swim; Basement of Yuck

S1, E2: Hampered by his giant, hot grandma sweater, the Captain struggles to free a kid's bathing suit from the jaws of a pool-bot monster in the mysterious and uncharted deep end of the pool. The Captain faces off against a gargantuan basement spider to rescue Max's baseball mitt from the scary, scary basement. But what about the Captain's French horn recital? The one he hasn't practiced for! At all! Who will save him from that? Hint: somebody tiny and pink who probably wears a cape.