Will's father returns, then leaves him again.
Carlton OD's on drugs that he got from Will's locker.
Will gets shot
Will and Carlton are arrested by racist police. My favorite Carlton/Phil moment when Phil says to Carlton "I asked myself the same question the first time it happened to me."
Carlton is turned down by the fraternity for "not being black enough."
Vivian's sister is marrying a white guy.
Does the last one count as "Heavy"? Seeing all of them say good-bye to each other, and turning off the lights at the Banks Bel-Air residence felt heavy. Even if no deep themes were explored (other than the inevitable truth that all things must end).
I haven't see the father episode in a while. I did like the one with the racist police who thought they were driving a stolen car. They did a good job playing on Carlton's naivete, the way he didn't understand that the police were being discriminatory (as opposed to Will, who did know). And lastly -- the prisoner who started singing was hilarious.