Duna e Lucas García têm o mesmo sobrenome, mas não são irmãos nem primos. São vizinhos e amigos, embora nem sempre tenha sido assim. Quando se conheceram, Lucas não quis ser amigo de Duna.

Bear and Marmot are great friends and always play together. It's fun to hunt for treasure, or sing and dance like pop stars. But one afternoon Bear tells Marmot that he has invited Duck to play with them. No way! Marmot doesn't like Duck.

クマとマーモットは大のなかよし、いつもいっしょに遊んでいる。宝ものを探したり、スターのように歌ったり踊ったりしてごきげんだ。ところがある午後、アヒルを遊びに誘ったと、クマがマーモットに言う。えーっ、それはないよ！　だって、マーモットはアヒルが好きじゃない。クマと自分だけの友情をこわすような者は、アヒルだってだれだってお断りだ。そこで、マーモットはアヒルを遊びにこさせないようにしようと決心する。それには何をすればいい？　マーモットのひとりよがりの考えからどんな騒動が巻き起こるのか。

Bear and Marmot are great friends and always play together. It's fun to hunt for treasure, or sing and dance like pop stars. But one afternoon Bear tells Marmot that he has invited Duck to play with them. No way! Marmot doesn't like Duck.