These are all of Alistair Oh's alliances.
Irina Spasky - to stop Dan and Amy: failed
Ian and Natalie - to blow Dan and Amy up: failed.
Amy, Dan, Ian and Natalie - to find the Clue: succeeded.
Amy and Dan - to find Isis' temple and the Clue: partly succeeded
Amy and Dan - to find the Clue: succeeded.
Irina - to escape the house: succeeded, although Irina died.
Dan and Amy - to escape the island: succeeded.
The Holts - to capture Dan and Amy: failed.
Amy and Nellie - to find Dan and to find the Clue: failed
Sinead, Ned, Amy, Dan, Ian, Natalie, Hamilton and Jonah- To stop Isabel: succeeded.