Synopsis: In this story of love and friendship, Doraemon and his gang embark on an adventurous journey. One day, Noby hatches a baby dinosaur from a fossil egg and names it Queester. They develop a strong bond, but Noby and Doraemon decide it would be best to bring Queester back to the Cretaceous period, where he can be with his friends. As they are traveling back 100 million years, they are attacked by a mysterious man in black who tries to take Queester away, but they escape and succeed in returning the dinosaur to where he belongs. A few days later, however, Noby and Doraemon discover they’ve made a huge mistake: due to a glitch in their time machine caused by the attack of the man in black, they’ve left Queester in the wrong place! Accompanied by Shizuka, Sneech, and Big G, the two hop back on the broken time machine to rescue their dinosaur friend. Will they be able to find Queester? And who is the strange man in black? An epic adventure, the first tale of the Doraemon’s Long Tales series!