Top Secret Mission
"Ultra-luxury cruise begins today. Wealthiest people will be aboard."
When Gadget tries to get on the cruise ship using his inflatable coat a seagul pops it with it's beak. Later his coat is back to normal.
Gadget: Just as I suspected; a highly suspicious situation with a highly suspicious group of people.
Gadget: Go-Go-Gadget Anything!
Note that the explosive milk bottle used in this episode is later seen in the James Bond film The Living Daylights