Relates how the lives of four children living in different parts of the country intersect and are affected by the events of September 11, 2001.

Three New York City teens express their reactions to the bombing of the World Trade Center on September 11, 2001, and its impact on their lives and the world.

The Callery pear tree standing at the base of the World Trade Center is almost destroyed on September 11, but it is pulled from the rubble, coaxed back to life, and replanted as part of the 9/11 memorial.

"The tragic 9/11 event in NYC that changed the world, altered the life of Abbi Hope Goldstein as well as that of Noah Stern. They did not know each other back then, but they know each other now, and while Abbi is trying to move forward with her life, Noah still has unanswered questions that he believes Abbi can help answer"--

"Yusuf is excited to start middle school in his small Texas town, but with the twentieth anniversary of the September 11 attacks coming up, suddenly it feels like the country's same anger and grief is all focused on his Muslim community"--

Brandon is visiting his dad on the 107th floor of the World Trade Center on September 11, 2001 when the attack comes; Reshmina is a girl in Afghanistan who has grown up in the aftermath of that attack but dreams of peace, becoming a teacher and escaping her village and the narrow role that the Taliban believes is appropriate for women--both are struggling to survive, both changed forever by the events of 9/11.

Ranger the time-travelling Golden retriever was trained for search-and-rescue and even though he did not pass the tests he has used his training on his many trips to help people caught up in disasters; now he has arrived at the World Trade Center on the morning of September 11, 2001 just as the first plane hits, and he must rescue fifth-graders Risha and Max who are trapped in the wreckage, guide them to safety, and hopefully reunite them with Risha's...

"It's the year 2000 in New York City. For 12-year old Alyssa, this means splitting time between her Puerto Rican dad's apartment in Manhattan and her white mom's new place in Queens, navigating the trials and tribulations of middle school, and an epic crush on a new classmate. The only way to make sense of it all is to capture the highs and lows in doodles and hilarious comics in a diary. Then life abruptly changes on September 11, 2001. After the...