Summary Edit

When an accident during a mission happens, Milli blames Geo for his powers.So Geo runs away and never come back to Umi City. Meanwhile a unknown skater named Blitz finds Geo and tells him he can be a great sibling to Milli, but when he tried to, his feelings becomes a monster of negativity and swallows him whole. Full of regret, Milli felt bad, so it’s up to Team Umizoomi to find him and help Geo.

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