Callan
Callan is not streaming on a US subscription app right now, as of October 5, 2026.
Callan... doesn't make friends - and all his enemies are dead!
David Callan, secret agent, is called back to the service after his retirement, to handle the assassination of a german businessman, but Callan refuses to co-operate until he finds out why this man is marked for death.
Where to watch
Not currently available for streaming in the US.
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