The Ambassadors - S2.E18

Chris and Alex travel to the lair of Emperor Tritan, who seems to be speaking in antiquated language. To stay on good terms, Chris and Alex overuse clichés themselves, prompting Tritan to allow the people of Trialviron to pass through his galaxy en route to Zeberon. But Duneedon is not content to go anywhere except Earth. While he is alone, he instructs a duplicate to take his place at the transporter. Chris, Alex, and Lynne feel relieved when they learn the trek to Zeberon was a success. Little do they know…