A summary is not the same as a play-by-play. I'm not looking for you to repeat, sequentially, the elements of a paper or book chapter in the order the authors presented them. Instead, I'm looking for a higher-level overview of the content: what was the chapter about? What are its main claims? What are the main questions it raises? Etc.
As an example, here's a sample summary of Tolkien's The Hobbit:
"Tolkien's The Hobbit presents a travel-based adventure in a rich fantasy setting. The titular character, Bilbo Baggins, is of a diminutive race of fictional beings, and the story largely concerns his travels through the world of Middle-Earth in search of a dragon's treasure. He is accompanied in this quest by a group of twelve dwarves, a mysterious wizard, and other mythical creatures.
"Although (like most hobbits) Bilbo is originally a decidedly non-adventurous soul — preferring to mind his humble home and garden and to eschew the affairs of others — he grows into a shrewd, courageous, and even fearsome adventurer as a result of his travels. Whether outwitting a group of predatory trolls, rescuing his compatriots from spiders and elves, or robbing the dragon of a chalice under its very nose, Bilbo develops daring and confidence with each new experience.
"One particularly notable episode involves Bilbo finding a strange creature ("Gollum") in an underground cave. In a gripping scene, Bilbo agrees to play a game of riddles with his life on the line: Gollum agrees to tell him the secret way out of he wins, but if he loses Gollum will devour him. Bilbo outwits him in the game and then somewhat unwittingly makes off with Gollum's favorite possession: a magic ring that renders its wearer invisible. The ring becomes a central feature in Bilbo's charisma and success throughout the rest of the adventure..."
And here's an example play-by-play of the same book:
"Tolkien's The Hobbit begins with a diminutive being named Bilbo Baggins living in his quiet home in the fantasy land of Middle-Earth. He is given a surprise visit by a group of twelve dwarves who tell of their lost treasure in a faraway mountainous land. A mysterious wizard also joins them and encourages Bilbo to consider accompanying them on a quest to retrieve it. The dwarves leave that night after a long meal and boisterous singing.
"The next day, Bilbo awakens to find his home in disarray from the visit, and begins to clean it. Suddenly he is summoned by the wizard to join the dwarves, who are already on the road. After catching up to them, Bilbo reluctantly plods along, not quite ready for adventure. The wizard, meanwhile, announces he must leave the group to groans of surprise and consternation, giving only vague reasons for his departure. That night the dwarves are surprised by a group of predatory trolls who capture them and plan to cook them in various meals. Bilbo, after a period of indecision, decides to try and rescue the dwarves at considerable risk to himself. His witty banter confuses the trolls long enough for the wizard to return and trick them into staying outdoors until dawn. When the sun rises, the trolls turn to stone.
"The group continues on in their quest the following day, which involves a perilous mountain pass. While taking shelter in a cave from the rain, a secret entrance opens to an underground tunnel complex, and the group is again taken captive, this time by goblins. Bilbo once again manages to escape, and while the dwarves are interrogated by the King of the goblins, he meanders deep inside the mountain to discover the abode of a strange creature named Gollum..."