<Tr> <Th> 149 </Th> <Td> 17 </Td> <Td> "Hot Wheels of Thunder" </Td> <Td> Peter Mitchell </Td> <Td> Peter Mitchell, Simon McNabb and Jordan Christianson </Td> <Td> March 13, 2017 (2017 - 03 - 13) </Td> <Td> 1.355 </Td> </Tr> <Tr> <Td_colspan="7"> Murdoch investigates the death of an expert roller skater . Meanwhile, Miss James enters a roller race against a group of women who have slighted her, and George faces relationship issues . Recurring star: Mouna Traoré as Rebecca James </Td> </Tr> <Tr> <Th> 150 </Th> <Td> 18 </Td> <Td> "Hell to Pay" </Td> <Td> Peter Mitchell </Td> <Td> Peter Mitchell </Td> <Td> March 20, 2017 (2017 - 03 - 20) </Td> <Td> 1.232 </Td> </Tr> <Tr> <Td_colspan="7"> Murdoch goes underground after becoming the prime suspect in the murder of a burlesque dancer who was found dead in his bed . While Station House Four protest his innocence, the newly reappointed Chief Constable Davis and the corrupt head of City Council spearhead an aggressive manhunt for the missing detective . Recurring star: Daniel Maslany as Detective Llewellyn Watts </Td> </Tr>

How many episodes are there in season 10 of murdoch mysteries