Fans wanting to keep "Star Trek: Enterprise" on the air have been figuring that if they were to raise the money themselves to fund the show, they would have to cough up $30 million.

One "Enterprise" campaign says they are 10 percent there after three anonymous donors have pledged $3 million toward a fifth season of the series, which was cancelled earlier this month by UPN.

According to officials of TrekUnited, three donors who also gave millions toward the commercial space flight industry through Space Adventures, have pledged the money toward another season of the show, the fifth in the Star Trek franchise.

"We are overwhelmed at the loyalty and proposed generosity of these fellow Star Trek fans," said Tim Brazeal, director of TrekUnited. "If this contribution can be ironed out, it will bring us much closer to our goal of funding a fifth season of 'Enterprise.'"

Brazeal told Airlock Alpha that the pledge is real, and the contributors are serious about helping to keep the series on the air.

In the last three weeks, the campaign has raised more than $40,000. TrekUnited was founded by Brazeal, who founded the Save Enterprise campaign last year, to help organize fans to fund a fifth season.

The campaign is working on a premise that each episode of "Enterprise" costs $1.6 million, based on statements made by series co-star John Billingsley, who plays Phlox in the series. Brazeal said that if each of the 3 million weekly viewers of the show contributed just $12, they would have enough to fund a fifth season.

Paramount officials have not commented on the campaign, although some members of the show's crew have told fans to be careful about donating to campaigns. TrekUnited officials said that if a series doesn't come through, donations will be refunded to fans minus a 5 percent fee. Excess fees, they said, would be donated to help with tsunami relief efforts.

"Star Trek: Enterprise" airs Fridays at 8 p.m. ET on UPN. The series finale is scheduled for May 13.