Abby and Sean's reunion at the wilderness retreat is anything but smooth. Abby is still harboring bitter feelings towards Sean for a misunderstanding that occurred at their graduation party, and Sean is confused as to why Abby suddenly cut him out of her life. Their constant bickering is a source of tension for the rest of the group, including Abby's friend Rachel, who is hoping the retreat will help Abby move on from her past grudges.
Despite their animosity, Abby and Sean find themselves drawn to each other as they navigate the rugged terrain on their hike. When they accidentally veer off the path, they have no choice but to rely on each other to survive. As they search for a way back to camp, they realize that their past disagreements were rooted in miscommunication and assumptions, and that they had both been holding onto grudges for too long.
As they work together to overcome the obstacles in their path, Abby and Sean begin to see each other in a new light. They open up about their struggles in the years since graduation, personal tragedies they have faced, and how their friendship had meant so much to one another. It becomes clear that they had been avoiding each other not out of spite, but out of fear and uncertainty.
As they finally make their way back to the campsite, Abby and Sean have uncovered a newfound respect and appreciation for one another. They realize that the way forward is not in holding onto old grudges, but in forgiving and moving forward together. The retreat, which was meant to heal old wounds, ends up forming a bond between the two that they never thought possible.