Duncan and his Dinghy
The crew decided to sail for the gravy stain, in spite of the Ranger's sub-mission to search for their lost party. (Fletcher declares: "That is not what we were hired for, and they were told explicitly not to go looking for them.") They set sail without consulting the Rangers; the Rangers are informed, but not given a vote.
After about a day's travel, Ant spots Duncan's Dinghy on the horizon, flying their pirate colours. (Meaning that they intend to fight in the customary sporting fashion.) The crew informs the Rangers that combat is coming, and the Rangers are middlingly interested in participating.
The crew makes a plan; Team Subtle (Cypher and Swain) are to go underwater to sneak onto the Dinghy from behind. Team Trouble (Fletcher and Helga) will be loading SOMETHING into the cannons to try and create a smoke bomb effect. Team Hustle (everyone else) who are going to bust onto the ship as ostentatiously as possible onto the Dinghy and cause a ruckus, steal the steering wheel and the flag.
Cypher and Swain fail spectacularly to climb the side of the ship, Fletcher fails spectacularly to shoot a smoke bomb and it lands on the Unsinkable's deck, Kelis fails spectacularly to swing across to the Dinghy.
The navigator of the Dinghy falls in the water trying to swing across, and Daniel Duncan manages to swing across and orders a gangplank placed. Ant lands in the rigging of Duncan's Dinghy and dives down onto a crew member and punches the crap out of him. Beurk makes it across and rushes over to assist Ant. The crew of the Dinghy lay down a gangplank, while Cypher and Swain clamber onto the ship. Swain gets up into the rigging and detaches the flag, while Ant, Beurk, and Kelis handily distracts the crew of the Dinghy. Swain uses the flag like a glider and descends to the Unsinkable just as Duncan is about to hand Fletcher's ass to him, and presents him with the flag, bringing the bout to an end.
The crew has dinner on the Dinghy. Fletcher and Duncan catch up and reminisce about old times, and Fletcher studiously does not tell him anything useful about where they are going. Helga flirts with an oarsman, Beurk sort of connects with Jacqueline and learns the secret that the lost ranger is someone that she loves.
Fletcher selects a map of troves near the gravy stain as the prize for their encounter.