Ian and Jane are quick to celebrate when they learn that the pair have both performed well in the tests - and Lucy has secured a particularly strong selection of results.
At first, the only thing to put a dampener on the day is Peter's secret resentment that Lucy is being constantly praised for getting six A*s that she didn't deserve.
Later, however, Mr Allcock arrives at the Beale house and announces that inconsistencies have been spotted in Lucy's results - so both hers and Peter's will have to be investigated.
As Peter looks likely to be tarred with the same brush as his cheating sister, what will happen next?
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EastEnders airs tonight at 7.30pm on BBC One.
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