It':s Chocolate Week! Noel Fielding and Alison Hammondhost as the bakers make fiddly mousse cups for the Signature,a white chocolate tart in the Technical and a fondue displayfor their Showstopper challenge.
Sig strikes gold raiding Keith':s hot spot, but when aline snarls his wheel, he must call his rival for help; arogue wave knocks out Rick's electronics, forcing Bob totake the helm; Harley breaks in a new co-captain, only tobreak down at sea.
John and Fiona try to work out a plan, but differ in theiropinions. Tommy finds himself in a troubling situation after atour group stumble upon something sinister.
Victoria Coren Mitchell hosts the quiz where knowledge onlygets you so far. Two teams who lost their first-round matchreturn - only one of them can go through to the next round.
A cracked tank on the Titan Explorer leaves Jake':sengines vulnerable to seawater; Keith fires another deckhandbut struggles to get rid of him for good; Johnathan prescribesalternative cures as the norovirus overtakes the Time Banditcrew at sea.
Lisa discovers Marge':s vintage clothes from the90's and is welcomed into the school's elitefashion club. But to feed their hunger for retro looks, thethrifters break the law - becoming a fashionista bling ring.Meanwhile, Homer gets addicted to a Reacher-type Dad TV showwith lots of punching.
In the 300th episode, Bob can':t decide whether to raisethe prices as flashbacks occur to when Bob and Linda firstopened the restaurant and Linda was pregnant with Tina.