The physical sets are packed with extras that go beyond the broadcast episodes:
Stylistic notes
Simultaneously, the Complete Pack offers the counterpoint of Mike’s slow descent into the machinery of Gus Fring’s empire. While Jimmy lies to himself, Mike is brutally honest about his own corruption. The season’s most stunning sequence—the silent, nearly wordless construction of the superlab—is a masterpiece of visual storytelling. Watching the Pack back-to-back, one realizes that Mike’s arc is a mirror to Jimmy’s. Mike builds a physical underground labyrinth for criminals; Jimmy builds a psychological one for himself. Both men believe they are drawing lines (Mike’s “no more civilians,” Jimmy’s “I’m not a lawyer for criminals, I’m a lawyer who is a criminal”), but the Pack shows these lines eroding in real-time. Better Call Saul Season 4 Complete Pack
He placed a burner phone on the table.
The introduction of Werner Ziegler adds a tragic, human layer to the cold industrialism of Gus’s empire. The physical sets are packed with extras that