Complete story — includes the ending
Lois tries to organize a surprise party for Clark's birthday but his schedule as Superman is so overloaded that he is never there. In the meantime, they try to investigate the disappearance of an astronaut, who, as is revealed later, was murdered. Meanwhile, a beautiful woman named Penny Barnes ( Kristanna Loken ) thinks that Jimmy is Superman and starts a relationship with him. Penny's boss, Garret Grady ( Dwight Schultz ), wants to activate a powerful satellite weapon system and is the one who is behind the murder of the astronaut since he refused to help him. When Grady finds out that Penny is Superman's girlfriend, he captures her, along with Lois, to force Superman to help him with his plan. Jimmy helps so Lois and Penny get free while Superman destroys Grady's plan and Grady is arrested. Penny realizes that Jimmy is not Superman, but she still loved him, especially when he risked his life to save her. Later Perry, after numerous cancellations, decides to surprise both, Lois and Clark, for Clark's birthday party since it is the only way to actually have a party.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Lois & Clark: The New Adventures of Superman season 4. HTML formatting and reference markers removed. · Content license