Hannah's submarine stops working, With no way to move, it's up to Fireman Sam and the team to launch an epic underwater rescue! #firemansam #underwaterrescue #submarine #oceanadventure #pontypandy #rescuemission #kidsaction #firefighters #teamwork #cartoonheroes #adventuretime #emergencyrescue #kidscartoons Welcome to the official Cartoonito YouTube channel! Subscribe now - goo.gl/dhqoEH The place to find funny cartoon videos, cute clips and catchy songs for pre-school children. Watch videos from all their favourite TV shows including Fireman Sam, Batwheels, Lucas the Spider, Baby Looney Tunes, Bugs Bunny Builders, and more. ▸ Watch full episodes and all the latest seasons on Cartoonito UK: youtube.com/channel/UCrFslqncMIdjD2WfB6pAcEg ‣ Channel 610 on Sky ‣ Channel 706 on Virgin, And also on NOW.