. ♪ amigos, amis ♪ buddies and chums ♪ we'll all be friends forever ♪ no matter what comes ♪ friends,friends have the best time ♪ filos ♪ sadiqi ♪ companion too ♪ there are all sorts of ways to say i'm a friend to you ♪ ♪ friends, friends, friends ♪ we are all friends, yeah ♪ i'm a friend to you, you're a friend to me ♪ ♪ we're the best of friends, friends, friends... ♪ (howling) (paint splattering) (gasping) oops. (all laughing) marshall... we got to hurry our cards to the post office to be delivered in time for friendship day. rubble, we picked the wrong road. this takes us past... (gasping) both: the spooky house! a friend of a friend of a friend told me that a creepy critter lives there. (chittering and snarling) both: whoa! (tires squealing) oh! chickaletta! look at all those friendship cards. (snoring, clucking) thanks, pups. it will be my delight to deliver them. those cards just go to prove that adventure bay is the friendliest town around. man: ha! huh? no place is as friendly as friendly foggy bottom. (laughing) mayor humdinger, i can't believe you'd make such a silly claim.

amy. these two have been friends since kindergarten, life-long buddies who wanted one last hangout beforemory. but what happened in arizona is something neither of their families will ever forget. reese mcmichael and rowan fitch's summer adventure to the grand canyon became mission impossible, lost in 100-degree temperatures for five days. out of water the first day, dehydrated, drinking from puddles. >> we found a few areas where water would just barely trickle out of the ground. >> reporter: rationing what little food they had. >> every day we'd eat a piece of a granola bar about that big. >> reporter: exhausted trying not to panic, the teens' survival instincts kicked in. >> we made a big sign with like rocks at the base of the trail that pointed to where we were. >> reporter: but on the fifth day thlir einelifee c of a helicopter and a tenacious sos. >> i had this big lifeguard whistle and started blowing and we're waving branches at it and stuff. >> we both felt like a tremendous sense of relief. >> reporter: with more than 2300 national park rescues in just one year at a cost of $4