Captain Briggs is an episode from season six.
In this episode, Himi shows up to join Embless' party. However, Captain Briggs also shows up! Isaac and his team all seem terrified of him except for Piers. Much of the episode revolves around them running from and fighting Briggs, who seems very, very powerful.
"It looks like Himi is here, but... Captain Briggs is back from the dead?"