It was OK. The space ship had 3 people in it.
Summary not in order but more character role wise.
Chloe:
Chloe knows about Clark. She seen him at the Fortress of Solitude. She almost froze to death but Clark stopped his study in order to save her. But before saving her his father told him to return before the sunset so he could continue his studies. He leaves her at a hospital near the north pole. At that time Clark sees the news on TV and runs back to Smallville.
Lex:
While Chloe and Clark are at Fortress. Lex wonders were Chloe went after seeing her in the cave. While he is driving he runs into Lana who is pretty beaten up. Lex takes her to his house so she can rest. Lex continues to wounder about Chloe. When Clark arrives in Smallville he goes straight to his house. Lex shows up at his house too. They talk about trust and all that crap. Lex tells Clark that he seen him in the caves. And ask Clark if it was him and if it was tell him the truth. Clark lies and Lex knows it.
Lana:
Lana just gets beat up in the whole show. See at the beginning of the show she is one of the first that sees the bad guys. One of them chokes her and tosses her. Lex finds her on the road and takes her to his house. While she is at Lex's she sees Lionel. Who is drawing krypton symbols onto the floor. Lionel's eyes are green and he seems to know about the people that have landed. He shows Lana their one weakness. Lana then tries to get the krypton people to follow her. She did by saying she knows were KL is. They go to Lex's house and she almost got them to go in a room full with kryptonite. But the sealed the door before anything happen. Then they beat up on Lana some more. Poor Lana
Ending:
This is when Clark shows up. They ask Clark to join them or they will put him in prison. Just like in Superman II. It is not even a fight, they shot him with the heat vision and they think he went in. Clark uses his speed to push them both into the prison. Then he took Lana to a hospital. While doing that the sun has set. And he loses his powers. At the hospital Lana and Clark make up. Lana tells Clark what see seen and Clark goes to look for the ship. But by the time Clark gets to the ship, it's gone.
Before Lex took Lana, she told him about the ship. Lex has the ship in his possession at the end of the show. He also finds Chloe at the hospital near the north pole. She mentions Clark's name. Lex looks at her and asks her why she would think Clark would know were see was at.
While the space ship is in Lex's warehouse. It starts to have some type of ooze coming off it. The ooze then takes shape of the 3rd krypton person (which I believe is the person that played Spike on Buffy/Angel).
End show.
Yeah my summary is not in order. If it sucks then to bad.