In a new lawsuit filed Tuesday, the remaining executives at startup Hyperloop One accused four former employees, including former co-founder and CTO Brogan BamBrogan, of a slew of breaches of duty to the company. The suit comes just a week after those four former employees sued Hyperloop One, accusing the remaining executives—including co-founder Shervin Pishevar—of mismanaging the company, mistreating the engineers, and even placing a “hangman’s noose” on BamBrogan’s desk.

The Los Angeles-based Hyperloop One had enjoyed some real success in prior months. The startup is trying to build a Hyperloop—a train-like method of transportation imagined by Tesla and SpaceX CEO Elon Musk that would use a low-pressure tube and magnetism to propel pods of cargo or humans at 700mph. In May, the company successfully tested the propeller mechanism for its test track in North Las Vegas

But rifts within the company were apparently already growing. The cross-complaint from Hyperloop One is just as incendiary and intrigue-filled as the original complaint, with accusations of screaming, sexist comments, and poor performance. Hyperloop One is demanding $250 million in damages from the four former employees.

Hyperloop One specifically names BamBrogan as well as David Pendergast, former assistant general counsel; Knut Sauer, the vice president of business development; and William Mulholland, the vice president of finance. The company accuses them of breaches of fiduciary duty and loyalty, as well as breaches of proprietary information, noncompete, and confidential information agreements. The counter-suit also claims that the “Gang of Four,” as they’re called in the complaint, interfered with contractual relations intentionally.

The suit alleges that this Gang of Four conspired to stage a coup against the other executives, with BamBrogan even going so far as to purchase the domain “hyperlooptoo.com” the day before he and ten other employees at the company sent a letter to Pishevar and board member Joseph Lonsdale airing their grievances and asking for reforms. “When their coup failed, the Gang of Four filed a sham complaint in this Court… filled with lies and half-truths, and followed with a malicious smear campaign in the media,” the cross complaint says.

The cross-complaint also alleges that the letter the group sent to Pishevar and Lonsdale was misrepresented in the original complaint and that it included many “unreasonable demands” that Pishevar remove himself from the company and promote BamBrogan and then-Vice President of Engineering Josh Giegel to be board members. Hyperloop One claims it went about implementing some of the more reasonable demands, but it ignored the more unreasonable ones.

In the weeks before the original suit was filed, Pishevar and Lonsdale gave up majority control of Hyperloop One, reducing their voting shares from a combined 78 percent to just 20 percent.

The cross-complaint goes on to say that the Gang of Four staged this coup because they “knew their positions were precarious in light of their performance lapses, abusive behavior towards fellow employees and outside partners, and egregious insubordination.” Hyperloop One calls BamBrogan a “slightly below average engineer,” and claims he acted erratically and screamed in the face of a female coworker, made sexist and inebriated remarks, punched a wall, and broke a beer bottle. The company goes on to say that he engaged in “brazen sexism” and “repeatedly refused to work with female partners, vendors, and employees.”

The original complaint also alleged that Pendergast was fired in front of his wife and children, but the cross-complaint says that Pendergast had insisted that his family members be present during some “heated discussions.” At one of these discussions, Pendergast allegedly shrieked “If you’re going to fire me, do it now! Fire me! Fire me right here and now!” When the company’s CEO allegedly refused and asked Pendergast to meet him in a separate room, the assistant general counsel apparently came carrying his daughter.

The cross complaint also says that BamBrogan lied about the “hangman’s noose” on his desk chair, insisting it was only a “rope tied with a lasso knot,” left next to the place where BamBrogan kept his “trademark cowboy hat.”

In response to claims that Hyperloop One mismanaged its finances, the company says that it retained the investment firm run by Lonsdale’s little brother because it trusted the company, adding that Lonsdale recused himself from the vote to retain the company. While BamBrogan and others claimed that Pishevar overpaid the PR firm his fianceé ran by tens of thousands of dollars, Hyperloop One claims that the price it paid was the PR firm’s standard rate.

Both sides are asking for a jury trial. A judge recently denied BamBrogan's request for a restraining order against a Hyperloop One executive, reasoning that because he no longer works at the company, he no longer has to fear for his safety.

Correction: Ars originally wrote that Pishevar and Lonsdale gave up majority control of Hyperloop One days after the original complaint was filed, but the two executives moved to give up their majority control before the original complaint was filed. We regret the error.