A young Peruvian bear travels to London in search of a home. Finding himself lost and alone at Paddington Station, he meets the kindly Brown family, who offer him a temporary haven.

Paddington Bear was the second television adaptation of the children's animated series and made by Hanna-Barbera. This series was traditional two-dimensional animated and featured veteran voice actor Charlie Adler as Paddington and Tim Curry as Mr. Curry. The character of an American boy named David, Jonathan and Judy Brown's cousin was added to the stories in order to sell the concept to US networks.

Paddington, now happily settled with the Browns, picks up a series of odd jobs to buy the perfect present for his Aunt Lucy, but it is stolen.

Paddington travels to Peru to visit his beloved Aunt Lucy, who now resides at the Home for Retired Bears. With the Brown Family in tow, a thrilling adventure ensues when a mystery plunges them into an unexpected journey through the Amazon rainforest and up to the mountain peaks of Peru.

Toko Amano worked as a detective, but to take care of her sick husband she quit her job. After her husband passed away, Toko Amano now works as a crisis management expert. 3 days ago, Toko Amano's former mother-in-law rode on an express train with beds. She witnessed a man strangling a woman and told the train conductor, but he thought she imagined it. The police later searched for the woman's body, but could not find her. Toko Amano boards the same express train that her former mother-in-law rode. She looks for the dead body.