The trio look for their friend's lost shell collection by retracing her steps on an elevator, in a laundry room and through a frog pond. Milli is visiting her friend Emily’s class for Favorite Things Day, the day everyone brings in their favorite things to show the whole class. Emily can’t wait to show the three sparkly shells she found at Sparkle Beach, but when she opens her treasure box, they’re gone! She must have dropped the shells on her way to school! Milli, Geo and Bot rush back to Emily’s apartment building to retrace her steps. Elevator escapades, laundry room adventures, and leaping lily pads over Frog Pond are all in a day’s work for our mighty heroes as they try to find Emily’s sparkle shells in time for the show.

Die Klasse von Emily hat etwas ganz Besonderes organisiert: Eine Lieblings-Dinge-Stunde zu der jeder seine allerliebsten Dinge mitbringt. Natürlich sind alle neugierig und gespannt darauf, die vielen schönen Sachen zu begutachten. Doch plötzlich sind Emilys wunderbare Funkel-Muscheln wie vom Erdboden verschluckt! Mit Hilfe von Geo, Milli, Bot und den UmiFreunden geht sofort die Suche los.

오늘은 우미 시티의 모든 어린이들이 공룡 박물관으로 소풍을 가는 날이다. 그런데 천둥소리를 유난히 무서워하는 공룡들이 도망을 가고, 박물관 개장 시간은 가까워오고 박물관의 공룡을 돌보는 쥐돌이는 우미 경보를 울린다. 이에 팀 우미주미는 도망친 공룡을 모두 찾아 박물관으로 다시 돌려보낸다.