Mitch is driving to Morrie's house in a rental car. He's on the phone with a work call and mentions that his return flight is in a few hours. In other words, this is a short trip.
When he sees Morrie in his wheelchair he freezes—Morrie's much older and weaker than he was sixteen years ago.
Morrie sees him and Mitch procrastinates on the phone; he admits that his old self would have run to give Morrie a hug right away.
Five minutes later, Mitch emerges from the car and hugs Morrie. Morrie will not let him go and calls him his old friend, saying, "you've come back at last" (5.15).
Mitch does some quick soul searching and feels guilty because he knows he's a far cry from his college self.
They sit down to lunch and a housekeeper serves them food, with a side of medicine for Morrie.
Morrie presents Mitch with a question: Would he like to know what it's like to die?
And so begins the final class that we heard about at the very beginning of Chapter 1.
Flashback to freshman year: Mitch is a year younger than the other freshmen, which he tries to make up for by acting tough. Morrie doesn't care about this, though, which puts young Mitch at ease; he signs up for more classes with Morrie since he's an easy grader.
Mitch calls Morrie Coach, and Morrie says that since he's the coach, Mitch has to be the player. They have lunch together, and Mitch is amused by Morrie's dynamic personality.