Claire and Phil each take on one of the kids' school projects; Gloria and Cameron bond during a night out.
Denny Crane's long-lost son (Freddie Prinze Jr.) resurfaces as the lawyer representing environmental interests against a shopping mall development planned by one of the firm's biggest clients.
The International Response team heads to Cuba when American bodies are found in different locations throughout the island nation.
Mulder and Scully, who are investigating a monster on the streets of Los Angeles, are followed documentary-style by a "Cops" camera crew.