Tensions arise during filming of their 'Beat Battle' video, a workout combining martial arts and street dance, when Hogg and Holzherr keep interfering with their new director's vision.
Hogg, who becomes an instructor for the clip, admits: "[Our] working relationship today started off a little bit icy. I think Duane came with a story board and a plan and he was getting quite frustrated with myself and Nick having an opinion."
Bryan, meanwhile, feels like he's being scrutinised by the pair and says: "Everything's being questioned and it's just making it increasingly difficult. I don't feel like we're working together if I'm honest."
The division between the group is quickly spotted by Nick Hewer, who muses: "In my experience, these sort of tasks, where cameras are involved, always end up in a squabble.
"I can begin to see fissures appearing in the closely woven team."
The Apprentice continues Wednesday at 9pm on BBC One.
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