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?
EastEnders airs tonight at 7.30pm on BBC One.
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