A street-wise American con man teams with a young Chinese physicist as they race against the clock to save the earth from a terrifying loss of gravity. A street-wise American con man teams with a young Chinese physicist as they race against the clock to save the earth from a terrifying loss of gravity. A street-wise American con man teams with a young Chinese physicist as they race against the clock to save the earth from a terrifying loss of gravity. A street-wise American con man teams with a young Chinese physicist as they race against the clock to save the earth from a terrifying loss of gravity.